Answer:
9 I THINK
Step-by-step explanation:
77 minus 14 equals 63 and 63 divided by 7 equals 9
Most likely 2100 because that is equal to 12 boxes of cereal and boxes usually contain 12 of their specified item
5 dimes = 50 cents
2 nickels = 10 cents
you have 60 cents
7, -13 should be 2
-2, -10 should be -6