So to figure this out we are looking for the amount of customers in the store each our, so we simply divide 120 by 6 and get 20 as our answer.
HE WOULD PAY $5.52 FOR 12 STAMPS BECAUSE 8.28/18=0.46 THE YOU USE 0.46 X 12 = AND GET $5.52
A) This one has no solutions because the answer of the equation is 0=-1 which isn't true.
b) 6t-3=3t+6 ==> 3t=9 ==> t=3 This means that this has one solution.
c) 6 (2m-3)-3m=2m-18+m ==> 12m-18=2m-18+m ==> 9m=0 ==> m=0 so this one has no solutions.
d) 10+3y-2=4y-y+8 ==> 8+3y=3y+8 ==> 0=0 ==> Infinitely many solutions.
~Hope I helped!~
0.426 = 426/1000 = 213/500