We can find h by calculating the area S of the parallelogram in two ways. We can write:

. On the other hand,

. Then:
Answer:
180 CDs
Step-by-step explanation:
So if Sam has 84 CDs, and the ratio from Sam to Alice is 7:8, we can do 84/7=12 so each number is equal to 12. Then we add up 7 and 8 and get 15, so we do 15*12 and we get 180.
Answer:
12.68 if you are rounding to the hundreths place
Step-by-step explanation: