pls help you dont have to explain just answer

Answer:
Problem 1: g(x) = (x - 3)(x + 18)
Problem 2: Option A, y = 1.2x - 6
Problem 3: Option D
Step-by-step explanation:
Problem 1:
g(x) = x^2 + 15x - 54
g(x) = (x - 3)(x + 18)
Answer: Option B, g(x) = (x - 3)(x + 18)
Problem 2:
Slope = 1.2
(y - y1) = m (x - x1)
(y - 0) = 1.2(x - 5)
y = 1.2x - 6
Answer: Option A, y = 1.2x - 6
Problem 3:
Answer: Option D
Look at attached graph: