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

A. Dividing each side by 2

B. Dividing each side by x

C. Subtracting 21 from each side

D. Subtracting 9 from each side

A store sells a box of highlighter that contains 4 yellow, 3 blue, 2 pink and 1 green highlighter. What is the probability of randomly picking first 1 blue and then 1 pink highlighter from the box without replacing the blue highlighter?

Pyramid A is a square pyramid with a base side length of 9 inches and height of ten inches. Pyramid B has a volume of 1350 cubic inches. How much bigger is the volume of pyramid B than pyramid A. Give your answer as a percentage.

A real estate agency offers three apartments for rent in New Mexico City. The expected total revenue per month from monthly rentals for the three apartments is $1,600.

If YV = 28 in, find the length of vyw

Determine whether the sequence is arithmetic or geometric. Sequence 1: 32, 16, 0, - 16, ... Sequence 2: 32, 16, 8, 4, ...

Explain why the diagram shows that 6 (3 + 4) = 6.3 + 6.4.

A swimming pool has an area of 40 square meters. It's length is 8 meters. What is the width?

If you save $4,500 at an interest rate of 13 percent per year, how much will you have at the end of seven years?

Many performances at a circus take place in a circular ring. One circus has a ring with a diameter of 300 feet. Find the circumference of the circle.

Convert fraction to decimal 3.20