Answer:
5
Step-by-step explanation:
f(x)=3x-1
f(2)=3×2-1
f(2)=6-1
f(2)=5
Post a full photo of all the other graphs
Answer:
not positive but i would say 48
Step-by-step explanation:
Answer:
(a) 
Step-by-step explanation:
Given


Required
Determine the time in each lap
The unit time in each lap is calculated by dividing the total time by the number of laps; i.e.;

Substitute values for Time and Lap

Answer:
A) 13.50>9.00
B) $7
Step-by-step explanation:
A) 4.50*3=13.50 (Peter) 4.50*2=9.00 (Cindy)
B) Cindy would have to earn $7 an hour if she works 2 hours per day because 7*2=14