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.
X^2 - xy + xy - Y^2
=
X^2 - Y^2
rounding 0.0692494 to 3SF is 0.069
Answer:
-3 your answer
Step-by-step explanation:
