Answer: 18x 45 58 should be correct
First, we find how much 1 baseballs card costs.
1 card = 0.60
12*0.6 = $7.20
Answer:
(+6) + (-11) + (+5)+(-7)
(6) + (-11) + (5) - (7)
6 - 11 + 5 - 7
(6 + 5) + (-11 - 7)
11 - 18
= -7