3

To solve 2x + 9 = 21, what is the first step?

А. Dividing each side by 2

B

Dividing each side by x

С

Subtracting 21 from each side

D

Subtracting 9 from each side

Forty percent of the sheets of construction paper are secondary colors. There are 25 sheets of construction paper. How many of those sheets are secondary colors?

One half of a number is 14 more than 2 times the number

After taking 4 pieces of fruit out of a bag, 12 pieces of fruit remained. How many pieces of fruit were in the bag to start? O A. 12-4 = 1 O B. 9-4 = 12 O C. 12 + f = 4 OD. 12 + f = 4 O E. 4 + f = 12 O F. f + 4 = 12

N = 7/3T+17 Solve the equation for T

Select all the equations that describe each situation and then find the solution. Han's house is 450 meters from school. Lin house 135 meter closer to school. How far is lin's house from school?

A pool service charges $40 per year for chemicals plus $70 per month for pool care. A second pool service's charges are shown in the table below. Number of Months (x) : 2, 3, 6, 8. Total Charge (y) : $190, $255, $450, $580.

What is the area of a rectangle with the length of 91 inches and a width of 45 inches?

What can 76 be divided by

At Kelli's skateboard shop, customers pay an upfront fee of $12 and then pay $3 per hour for each hour they use the skateboard. Write a rental equation for the cost of renting a skateboard at Kelli's shop. ht

Find the area of a square with length 6 1/3 inches. usethe appropriate unit of measurment