Question

Can someone please help me? I am having a-lot of trouble!

Answer 1

Explanation:

Cost of 5 packet = $ 2m

Cost of 1 packet =
`(2m)/(5)`

Cost of 3 packets =
`(2m)/(5)*3=(6m)/(5)`

Change receive by her =
`10 -(6m)/(5)\\\\`

`=(10*5)/(1*5)-(6m)/(5)\\\\=(50)/(5)-(6m)/(5)\\\\=(50-6m)/(5)`