Pete estimates that he has spent $64.50 on supplies for his lawn mower. He charges $12 per lawn for his service. Write a linear model in the form y=mx+b where y represents the amount of profit Pete earns for mowing x number of lawns.

Question and answers are in the attached picture. you so much in advance.

Explain how you can use the associative property to evaluate (7x50)x4.

Adolphin is swimming with her friend. the dolphin jumps to a height of 4.54.54, point, 5 meters above the surface of the water as her friend swims 9.89.89, point, 8 meters directly below her. what is the position of the dolphin's friend relative to the surface of the water? meters