The difference between the coat cost for Delaware vs Fairfield is $0.60
Explanation:
For Delaware: 80 × .0725 = $5.80
80+5.80= $85.80
For Fairfield: 80 × .065 = $5.20
80+5.20=$85.20
85.80-85.20=0.60

× 2
2 =

Numerator × numerator
Denominator × denominator

×

Answer 0.06*0.7+0.03=0.072 and 0.06*(-0.2)+0.03=0.018
4 books
2(her gym clothes)+1(her lunch)=3
11(the total)-3(what we know)=8
8(the amount of room remaining)/2(the weight of each book)=4
4 books is the answer