Answer:
14 months
Step-by-step explanation:
60x+60=50x+200
10x+60=200
10x=140
x=14
60(14)+60=900
50(14)+200=900
Answer:
g(f(4)) = 9
Step-by-step explanation:
Fill in gf(x) for where x is in g(x): (x-7)²
Then, fill in 4 for where x is: (4-7)²
Square it: (-3)²
9
Answer:
f(x) = -x^2 + x + 13 find f(9) = -59
Hope this helps :)