Answer both questions

the amount paid for different weights of oranges at a farmer’s market are shown below.
(lb) ($)
2 3
3 4.50
5 7.50
? 12

(a) is the relationship between the price and the weight of the oranges proportional? use the first three rows of data to answer this question. show your work and explain.

(b) how many pounds of oranges cost $12? show your work.