First you would plug in the 9 for x, then you would try to solve for y
50 $6 TICKETS WERE SOLD
25 $4 TICKETS WERE SOLD
hope this helped :)
I am not that really sure but ig its 5
Aye do 9*9*6 then it gives u the answer
Answer:

Decimal Form:

Step-by-step explanation:

Remove Parentheses: 

Multiply the numbers: 

Divide both sides by: 

Simplify:

Hope I helped. If so, may I get brainliest and a thanks?
Thank you, have a good day! =)