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.

Solve for x by cross multiplication


- Swap the sides of equation

- Divide both sides of equation by 30

Answer:
<h2><em><u>1st</u></em><em><u> </u></em><em><u>option</u></em><em><u> </u></em></h2>
Step-by-step explanation:
Place the compass at one end of line segment, and taking it more than 1/2 of MN is its 1st step