Marco is saving money for summer camp. He saves the same amount of money each week. .After 4 weeks, he has saved a total of 60 dollars. After 5 weeks he had saved a total of 75 dollars. Create an equation that represents the only total money. y that Marco had had saved after x weeks.

Step-by-step explanation:

(4, 60), (5, 75)

(75 - 60)/(5 - 4)= 15/1 = 15

y - 60 = 15(x - 4)

y - 60 = 15x - 60

y = 15x

range =5

step-by-step explanation:

to find the range, we take the largest value and subtract the smallest value.

the largest value is 5

the smallest value is 0

the range is 5-0   =5