TEST YOURS 8 The formula P = 2(4 + W) can be used to find the perimeter of a rectangle with a length, L, and a width, W. The perimeter of a rectangular shipping crate with a length of 9 feet is 30 feet. What is the width, in feet, of the crate? Answer 9 Skylar paid $18 to park at the airport. She bought 4 plane tickets for her family. Each plane ticket cost the same. Altogether, she paid $610 for the plane tickets and parking. Part A What is the cost for each plane ticket? Answer Part B Explain how you found your answer. 10 Keith solved the equation 3(t + 7) = 27 for t using the distributive property to first remove the parentheses. Part A What value of t makes the equation true? Answer Part B Hugo solved the same equation by first dividing both sides of the equation by 3, and then subtracting 7 from both sides. Did he use a correct method to solve this equation? Explain how you know