Answer:
D) Increase; Increase
Step-by-step explanation:
Answer B & C are correct because P(A) + P(B) + P(C) add up to 1
I found it quicker than i thought i would! the positive x-intercept is (4,0). negative x intercept is (-

,0)
In this problem, you're looking for the value of t, so that f(t) = 48. That means if you put t into 5t-7, you'll get 48. To do this set up and solve an equation for t by setting 48 equal to 5t-7:

Isolate the variable by adding 7 to both sides.

Divide by 5 on both sides to find t.

The answer is 11.