291-186=105 (total earned through wages)
105/5=21
Therefore she worked 21 hours
Answer:
4x^2 +9x/4 -7
Step-by-step explanation:
f(x) =x/4 - 3
g(x) = 4x^2 + 2x - 4
(f +g)(x) = x/4 - 3 + 4x^2 + 2x - 4
= 4x^2 + 8x/4+x/4 -7
= 4x^2 +9x/4 -7
Answer:
Step-by-step explanation:
