At a store 15 candy bars cost $20 how much for 1 candy bar decimals

You have 3 boxes, one "strawberries"; one "mentos" and one "mixed".but you know that all the labels are in incorrect order .how do you know witch is witch?

Solve the system of equations y= 3/2 - 1, -x+ y =-3

The cost of a taxi ride includes an initial charge of $2.00. if a 5km ride cost $6.00 and a 10km ride cost $10.00, determine the cost of a 15km ride.