The average cost of online photos decreases from 0.50 per print to $0.15 per print between 2002 and 2009. find the average rate of change in the cost. explain what it means

Tyler enjoys the fish so much that after his birthday his family decides to take him to a famous aquarium a tank at the aquarium is similar to his tank with the scale factor of 8 how many times greater is the volume of the tank at the aquarium than the volume of tyler tank