I really need help with 11 through 17 I’m stumped and I really need help!!!

25 ! the line of best fit is h = 5a + 86. predict the height at age 16. show your work.

Erinn wrote the equation –5x + 4y = 32 to represent her hourly wage (y) and how this wage has changed during each year that she worked at a company (x). what is the rate of change in erinn's hourly wage per year?

The height of a plant, in inches, p years after planting it is given by the polynomial function r(p) = -2p% + 270p. find the height of the plant when p = 90 years.