Three copies of a book cost $20. Use equivalent ratios to find the cost of nine copies of the book.

Find the circumference and area of the circle with diameter 12 ft. Express your answer in terms of π. 8π ft; 36π ft2 12π ft; 36π ft2 6π ft; 38π ft2 12π ft; 64π ft2

Convert 12 cups to quarts

Evaluate 8 j - k + 14 when j = 0.25 and k = 1

What is 10 times 10000000

It is estimated that an iceberg weighs 84000 tonnes. As the iceberg moves into the warmer water, it's weight decreased by 25% each day. What will the iceberg weigh after 3 days in the warmer water? Give your answer to 3 significant figures.

A plane's altitude had a change of - 2750 ft. in 5 minutes. What was the plane's average change in altitude, per minute, for that time period? A. - 13,500 ft B. - 550 ft C. 550 ft D. 13,750 ft

Write the fraction as money amount 65/100

Does anybody know what 11/10 to the 2nd power is? (11/10 is an improper fraction if you are wondering)

Identify the center and radius of a circle with aquation (x+9) ^2 + (y+6) ^2=9

Write a word problem for the equation: 1/2 x 2/3 = X