At an auto care shop, 70% of customers get an oil change for their car. Only 45% of customers get an oil change for their car and get their car tires rotated. What is the probability that a customer who gets an oil change for their car also gets their car tires rotated? Round your answer to the nearest tenth of a percent.
The statement of the question tells us that 45% of the customers getting an oil change will have their car tires rotated. Therefore: probability of both = 0.7 x 0.45 = 0.315 = 31.5%