The cost of a single ticket depends on the number of tickets, t, purchased in a group, as represented by the function c(t). c(t) = what is the total cost for 20 tickets?

i need a diagram

step-by-step explanation:

no

it would be 3 ÷by 6 because the number on each side

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