Sarah purchased a set of art supplies for $20.90 and a pair of jeans for $18.95.the sales tax rate in the state is 7%.how much change did sarah receive from $50

Total purchase she did : $20.90+$18.95=$39.85
7% tax means that we have to 7% or (7/100) extra
7% X 39.85= 2.79
total pay: 39.85+2.79=42.64
total cash: $50
what she gets back: 50-42.64=7.36

Cwill be your correct answer

Figure it out your self