Kaia bought some ribbon for wrapping gifts. The ribbon cost $0.21 per centimeter. She bought 450 millimeters of ribbon.

How much did Kaia pay for the ribbon?

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Which is the product of 58 and 1,000? a. 0.058 b. 5,800 c. 58,000 d. 580,000

Find the average rate of change for f(x) = x2 − 3x − 10 from x = −5 to x = 10.

The number of revolutions of two pulleys is inversely proportional to their diameters. if a 24-inch diameter pulley making 400 revolutions per minute is belted to an 8-inch diameter pulley, find the number of revolutions per minute of the smaller pulley.