Answer:
$2.24
Step-by-step explanation:
The shipping cost for one package was 1/11 of the total shipping cost.
... 1/11 · $24.64 = $2.24
If it cost $24.64 to ship 11 packages
Divide $24.64 by 11 to get the cost of 1 package
$24.64/11=$2.24 per package
Check:
$2.24*11=$24.64
PRT = I
R = I/PT
R = 99/(1200)(.75)
R = 99/900
R = 11%
D
D is your answer
.............
10000