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.

answer

a the answer hopes this

step-by-step explanation:

look at the picture.

y-intercept for the function on a picture is 4 → point (0, 4).

y-intercept for the function

is for x = 0. substitute:

y-intercept is 8 → point (0, 8).

the opening of this porabola is facing up

step-by-step explanation:

134.6 us dollars

step-by-step explanation:

1 us dollar = 1.33 canadian dollars

so, 150 us dollars = 150 × 1.33 = $199.5.

in canada, the money mitchell spent = 20 canadian dollars.

remaining canadian dollars with him = 199.5 - 20 = 179.5.

after mitchell returned to us, he exchanged the remaining canadian dollars to us dollars.

179.5 canadian dollars = 179.5 × 0.75 = 134.6 us dollars.