The figure below shows a scale diagram Sarah drew of the patio of her house. The actual length of the patio is 17.5 feet. Part A. What was the scale Sarah used to draw the patio?
Part B. What is the actual width of the patio?
Part C. If Sarah had used the scale
7 inches = 25 feet, what would have been the length and width of her scale drawing?

answer: -10

step-by-step explanation:

s(t) = 1 - 10t

s(x) = 1 - 10x

s(x + h) = 1 - 10(x + h)

            = 1 - 10x - 10h

s(x + h) - s(x) = 1 - 10x - 10h - (1 - 10x)

                      = 1 - 10x - 10h - 1 + 10x

                      = -10h

= -10

12r - 8 - 12

you have to combine like terms. below i have bolded the like terms:

12r - 8 - 12

together it combines to:

12r - 20

hope this !