It takes 35 mins for 6 people to paint 7 walls if you would like this answer described to you let me know please
The actual price is $59.63 BUT when you round it is $60.00
Step-by-step explanation:
everything can be found in the picture
F(x) = x² + x - 20 = x² + 5x - 4x - 20 = x(x + 5) - 4(x + 5) = (x + 5)(x - 4)
f(x) = 0 ⇔ (x + 5)(x - 4) = 0 ⇔ x + 5 = 0 or x - 4 = 0 ⇒ x = -5 or x = 4
Answer: C. x = -5 and x = 4.