The answer of all of this is 18 because 18.1 months so if you do the math you get 18-7x+20^2
we know the x-intercept of the line is 1, recall that an x-intercept is when the graph intercepts or touches the x-axis, and when that happens, y = 0, so the point is really x = 1, y = 0, namely (1,0). We also know another point on the line, is (-2, 9).

Answer: Polynomial
Step-by-step explanation:
The answer to this question is x=6