Answer:
3 tires
Step-by-step explanation:
56 minutes divided by 4 is 14. 42 minutes divided by 14 is 3 :)
Answer:
(x + 2)^2 - 11.
Step-by-step explanation:
f(x) = x^2 + 4x - 7
Now x^2 + 4x = (x + 2)^2 - 4 so we have:
f(x) = (x + 2)^2 - 4 - 7
f(x) = (x + 2)^2 - 11.
Answer:
21.
Step-by-step explanation:
