Answer:
9 red shirts
Step-by-step explanation:
30 x 0.30 = 9 red shirts
47 cm²
3(9 - 4) + 8 × 4 = 15 + 32 = 47
small is 0.018
medium is 0.016
large is 0.010
= 13.25 dollars
The total cost of the books is
0.75*9=6.75
So the amount of money returned is 20-6.75
= 13.25 dollar