Question

The price of apples at a farm is $1.67 per pound. Which equation can be used to determine c, the total price of n pounds of apples?
c = 1.67n
c equals 1.67 over n
c = 1.67 + n
c = 1.67 − n

Answer 1

C=1.67n

It's kind of like y=mx+b. C stands for the overall price. And n stands for the amount of pounds. For example if someone bought 6 pounds apples at the farm it would be 
c=1.67(6)
c= $10.02