Y = 2/7x - 4
y + 4 = 2/7x
4 = 2/7x - y (multiply everything by seven to get rid of the fraction)
28 = 2x - 7y
2x - 7y = 28
whelp the answer to your question, the one you put up at least is 16.333 going on infinitely or 16 and 1/3
I think the answer is 84/3
First take the amount of drinks and popcorn needed then multiply the amount by the price then see if she has enough money when you finish the multiplying.
Transmission must be in third gear as both are running at the same speed ! so third gear !!!