Question

a store sells 12 cans if nuts for 18$. how much would it cost you to buy 7 cans of nuts

Answer 1

So 12*1.5 gets you 18 so u mutiply 7*1.5 and get 10.5 but you will have to round so the answer would be 11

Answer 2

set them equal to each other so. 
12/$18 = 7/? 

12? = 18x7
12? = 126
 divide by 12 on each side 
? = 10.5 is the aswer