If the common ratio of triangle abc to triangle xyz is 2: 3 what is the common ratio of the perimeters of triangle xyz to triangle abc

Try it out on a triangle.

Triange abc - 2,2,2 = 6
Triangle xyz - 3,3,3 = 9

6/9 = 2/3

so the answer is 2:3 

Answer for 2: his profit would be $2.88 explanation: you have to first multiply 72 and 0.12 together to get $8.64 once you do that you know how much money the shopkeeper made from selling the candy bars individually. so you have to do 8.64-5.76=2.88 hope that ; )answer for 3: yeah i’m sorry i have no idea what number 3 is. i’m sorry i couldn’t with that.