Answer:
melissa pays 18.144
Step-by-step explanation:
Answer is 7.
55+5X=90
5X=90-55
5X=35
X=35/5
X=7
It should be 112.5 pounds because if there are 15 boxes and each box weighs 7.5 pounds, 15 x 7.5 = 112.5
1 is in the tens place
we look at 2
2 <5 so we leave it alone
6,310
Choice B