Hey! :)
10y-3(y+5)
Distribute the -3.
-3*y= -3y -3*5= -15
10y-3y-15
7y-15
"A" is the answer.
~'Manda
Answer:

Step-by-step explanation:
Since these angles are supplementary, they add up to 180°.
Let's make an equation.

20+9 equals the twenty nine part but sorry I don’t know the five thousandths sorry