37 minutes. he does 10m every 2 minutes until he does 180m for 36 minutes. then he does 20m for 1 minute bc the wave doesn't take him back. so it's 37 minutes
F(x)=3x-2
g(x)=x^2
(g o f)(3)=?
(g o f)(3)=g(f(3))
x=3→f(3)=3(3)-2
f(3)=9-2
f(3)=7
(g o f)(3)=g(f(3))=g(7)
x=7→g(7)=7^2
g(7)=49
Answer: (g o f)(3)=49
Find the unit price
2.42/16 = 0.15125
1.93/12 = 0.15083 repeating
0.90/6 = 0.15
1.25/9 = 0.138 repeating
The $1.25 one for 9 Oz would be the best buy.
