Answer:
1: -12
2: 3 7/9
3: 7
Step-by-step explanation:
He increased 30% so that means he can bench press 180lbs
No, because it has a constant rate of change
F(x+h) = 2(x+h) +3= 2x + 2h +3
f(x) = 2x + 5
f(x+h) - f(x) = 2x + 2h + 3- 2x - 3= 2h
[f(x+h) - f(x)]/h = 2h/h = 2