Answer:
D.$315
Step-by-step explanation:
$450=100%
100%-20%-10%=70%
$450×70%=$450×70/100
=$315
12
because the greatest common factor (gcf) of the two numbers 36 and 24 is 12. Hence, if he makes 12 packages, they would be identical.
824
the answer is 824
30
40
