Answer: F (x) = 5x^2 + 10
Answer:
17
Step-by-step explanation:
divide 1020 by 60
1020 ÷ 60 = 17
meaning that you go 17 mph
x=29
3x+15+2x+20=180
3x+2x+15+20=180
5x+35=180
5x=180-35
5x=145
x=145/5