If a circle has a diameter of 18cm, how long is the circumference?

Macy spent 2 hours working on homework. She spent 1/4 of that time working on math. How much time did Macy spend on her math homework?

Find the value of a that makes the following equation true. 6 (4 + a) = 96

Simplify the expression below. 5xy2 - 3x + 2y2 + 7x + 13xy2

What is 72 x 1/4? I have no clue!

leticia stretched for 8 minutes and them jogged around her block several times. it takes her 6 minutes to run around the block once. she spent 38 minutes exercising. how many times did leticia jog around the block?

How many complex roots does the polynomial equation have? -3x^4-7x+17=0 2 3 4 5

During the summer, every student became 5% taller. Matt was x before summer, after summer he was 105cm.

What is 4 1/2 as an improper fraction?

Jake has piece of yarn that is 4 feet long. Blair has a piece of yarn that is 4 inches long. Who has the longer piece of yarn?

What property is 5+0=n