So first, we should add the prices of all salons. At Gustran Salon, the total price is: $45 + $22 + $30 = $<<45+22+30=97>>97
The total price at Barbara's shop is: $40 + $30 + $28 = $<<40+30+28=98>>98
The total price at The Fancy Salon is: $30 + $34 + $20 = $<<30+34+20=84>>84
At Gustran salon she would spend $97, at Barbara's Shop she would spend $98, and at The Fancy Salon she would spend $84, so she would spend $84 at the cheapest salon.
#### 84