Answer:
7x + 8.25y ≤ 180; no more than 13 dolls
Step-by-step explanation:
all you do is multilply 7 times 10 which is just 7x and then subtract 180 from 70 leaving you with 110 then divide 8.25 into 110 leaving you with a decimal number of 13.333333 and there you go that really it