ritchie wants to paint his bedroom ceiling and four walls. the ceiling and each of the walls are 8 feet by 8 feet. a gallon of paint covers 40 square feet. write an expression that can be used to find the number of gallons of paint ritchie needs to buy

answer: it's d

step-by-step explanation:

just pick what you think i need more time let me know if this

step-by-step explanation:

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

then