I'm not good at math but I think is 3f because you'll be multiplying f(unknown #) by 3 so f(x) would be 3f
Since one kilometer is equal to about 0.621 miles, a runner travels 3.105 miles in a five-kilometer race.
Answer: The second one
Step-by-step explanation:
The correct answer is A!
c(x) = 1.50 + 1.25x
