What is 75% of 18 I'm really confused on this lesson

When sound is created it travels to the ear through a

Does 2 x 6 + 15538 equal 15550

What number is 140% of 15

Nancy left a bin outside in her garden to collect rainwater. She notices that 1 over 2 gallon of water fills 2 over 3 of the bin. Write and solve an equation to find the amount of water that will fill the entire bin. Show your work.

You estimate that your school is about 47 ft tall. Your school is actually 56 ft tall. Find the percent error in your estimation.

What is $16.50 x 7%

3. "a varies directly with b". If a = 4 when b = 21, find a when b-7.

Evaluate the expression using order of operations 8-3[{4+2}+6]=?

Let n be a prime number. Which of the following statements CAN be true? A. n is a perfect square B. n is even C. n is irrational D. nis negative E n is divisible by 4

Katie practiced the flute for 45 minutes. Then, she ate a snack for 15 minutes. Next, she watched televison for 30 minutes, until 6:00 P. m. At what time did Katie start practicing the flute?