The weekly fee for staying at the Pleasant Lake
Campground is $20 per vehicle and $10 per person.
Last year, weekly fees were paid for v vehicles and
p persons. Which of the following expressions gives
the total amount, in dollars, collected for weekly fees
last year?
A. 20v + 10p
B. 20p + 10v
C. 10(v + p)
D. 30(v + p)
E. 10(v + p) + 20p

Question

The weekly fee for staying at the Pleasant Lake
Campground is $20 per vehicle and $10 per person.
Last year, weekly fees were paid for v vehicles and
p persons. Which of the following expressions gives
the total amount, in dollars, collected for weekly fees
last year?
A. 20v + 10p
B. 20p + 10v
C. 10(v + p)
D. 30(v + p)
E. 10(v + p) + 20p

anonymous · Answer

I'm not cheating :) this is from the ACT practice test. I just need help working through the  problems.

anonymous · Answer

Well, you've got to find the sum of both the vehicles and people, which are unknown factors. Knowing the prices, you'd be able to multiply the unknown variables, either p or v, by the prices and add the products together to receive an equation. Make sense?

anonymous · Answer

So then wouldn't it be A ?

anonymous · Answer

Yep. That's exactly it