Two bicycle riders start from the same point and ride in opposite directions. One rider is moving twice as fast as the other. In 3 hours, they are 72 miles apart. Find the rate of each rider.

Which expression is equivalent to7_/x^2 ÷ 5_/y^3? assume y# 0

What is the y intercept of f(x)=(1/2)^x?

According to the 2008 u.s. census, california had a population of approximately 4 × 10^7 people and florida had a population of approximately 2 × 10^7 people. which of the following is true? a. the population of florida was approximately two times the population of california. b. the population of florida was approximately twenty times the population of california. c. the population of california was approximately twenty times the population of florida. d. the population of california was approximately two times the population of florida.