Trees in urban areas keep air fresh by absorbing carbon dioxide. A city has $2400 to spend on planting spruce and maple trees. The land available for planting is 45,000 square feet. Spruce trees cost $20 to plant and require 300 square feet of space. Maple trees cost $30 to plant and require 900 square feet of space.

your answer would be 10x - 1

$15.40 per mile

step-by-step explanation:

you have to round up to 4 because 6 is over 5 so you have to round the 3 up to 4

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

its kinda hard to answer this when we dont have all the information that we need.