Answer:
$3.50
Explanation:
1) 4 friends each bought a movie ticket = 7.50 * 4 = 30
2) subtract from total cost = 58 - 30 = 28
4) total number of candy boxes is 8 (because each friend bought 2 boxes so 4*2 is 8) = 28/8 = 3.5
5) money so = $3 dollars and 50 cents