The kids are racing around a circle on the playground with a radius of 12 feet. If they ran around it 5 times, how far did they run round to the nearest foot?

Assume that y varies inversely with x. if y=1.6 when x=0.5 find x when y=3.2

What is the point of inflection for the function f(x)=2cos4x on the interval (0, pi/2)

The ideal weight of a nickel is 0.176 ounce. to check that there are 40 nickels in a roll, a bank weighs the roll and allows for an error of 0.015 ounce in total weight