After the first bounce, the height is 8·0.75 = 6 ft. Each subsequent bounce multiplies the previous height by 0.75, so the height after n bounces is ...
Step-by-step explanation: part a : you add 9a and 5 a since they have the same varible then you add 6b and 2b to get 8b which gets you your first answer of 3(14a-8b)
