You need to multiple 7 and 5 or you could just skip the answer
She still needs 36 inches of fabric (Also meaning 1 foot)
Part: 16
total: 20
percent: 80%
21.20 would be the total with tax
the taxes would equal $1.20
Honestly to explain it I put it into a calculator.. sorry :)
I put in 6% of 20 then add it to the $20
In the middle there are 13 units away.