8 1/2 or 8.5 x11 = 93.5 square inches thus, 1000 square inches divided by 93.5 square inches 1000/93.5 ~10.695 that mean that Jodi can cut out about 10 pieces of paper measuring 8 1/2 x 11 inches.
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