If 5 is 5%, then we can say that 1 is 1%, so we can multiply by 100 to get 100% which is 100, your answer. I hope this helps!
20% off $25.95
10%= rounded $2.60
2.60 x 2= 5.20
25.95-5.20= $20.75
30% off $29.50
10%= $2.95
2.95 x 3= 8.85
29.50-8.85= $20.65
store b has the better selling price
6 x 4=24 so the area of the donut 24 which is the answer to the question