### Rich moved some of his money from his savings account to his checking account to cover the cost of his new car. Rich's savings account originally had $89,848.62 in it, and now his balance is $59,998.62.

**Estimate how much money did Rich spend on his new car?**

$40,000

$30,000

$25,000

$10,000

The difference between approximately $90,000 and $60,000 is $30,000. Approximations are used to save time when a precise figure isn't necessary practical.

**How many minutes are there in five days?**

1,440 minutes

2,400 minutes

7,200 minutes

6,000minutes

In order to solve the problem, convert the units from days to hours.
1 day = 24 hours
1 day x 5 = 24 hours x 5 = 120 hours
Next convert hours to minutes.
1 hour = 60 minutes
1 hour x 120 = 60 minutes x 120 = 7,200 minutes

### Ashley was 98 pounds one year ago.

**If she now weighs 112 pounds, what is the percent increase in her weight?**

15.3%

18.5%

12.5%

14.2%

Ashley's weight changed by 112 - 98, or 14 pounds.
Divide this amount by the original amount and multiply by 100 to determine percent change.
(14 \u00F7 98) \u00D7 100 = 14.2%

### In her will, Laura left 20% of her estate to her niece, 25% to her daughter, and the remaining portion to one of her favorite charities.

**If the daughter received $20,000 as her share, what was the total amount of money given to charity?**

$44,000

$40,000

$54,000

Not enough information given

Laura gave 25% of her estate, or $20,000, to her daughter. We can find the total value of the estate by setting up an equation:
.25x = 20,000
x = $80,000\u00A0
Next, we need to find out the percentage of Laura's total estate that was given to the charity.
20 + 25 + y = 100
45 + y = 100
y = 55\u00A0
55% of Laura's estate was give the to the charity. Since we know the total value of the estate is $80,000, we multiply that by 55%.
80,000 x .55 = 44,000
Laura gave $44,000 to her favorite charity.

### Mark orders five pizzas to feed 10 people. Each pizza has 8 slices.

**How many slices will each person be able to eat if it is divided evenly among them?**

3

5

6

4

First, calculate the total number of slices:
5 pizzas × 8 slices per pizza = 40 slices
Next, calculate how many slices per person:
40 slices ÷ 10 people = 4 slices per person

### A box is 5 inches high, 10 inches wide, and 8 inches deep.

**What is the volume of the box?**

189 cubic inches

800 cubic inches

400 cubic inches

80 cubic inches

The formula to find the volume of a box is height x width x depth. Thus, the volume of the box is 5 x 10 x 8 = 400 cubic inches.

**Express 21 as a percentage of 57.**

11.97%

0.36%

36.84%

25.78%

To express one number as a percentage of another number, calculate its decimal value and multiply it by a 100:
(21 ÷ 57) × 100
(0.3684) × 100 = 36.84%

### The chef used 2 tablespoons of salt, 4 tablespoons of baking soda, and some pepper. There is a 1 to 3 ratio of salt to pepper.

**Which of the following numbers in the problem are needed to find the total number of tablespoons of pepper that the chef will use?**

4, 1, and 3 only

4, 2, 1, and 3

1 and 3 only

2, 1, and 3 only

In order to find the actual number of tablespoons of pepper, you need the initial ratio, plus one actual number. The initial ratio of salt to pepper is 1 to 3, and the actual number of tablespoons of salt is 2. You do not need the fact that the chef used 4 tablespoons of baking soda. This piece of information does nothing to help you solve the ratio involving salt and pepper.