For this case we have to:
x: Be the variable that represents the number of adult rounds
y: Be the variable that represents the number of rounds of children
We want to know for what amount of rounds bingo costs are the same for adults and children.
Adult costs = 2x + 13
Child costs = 3y + 10
Matching:

We want the same number of rounds, x = y:

Thus, for 3 rounds the costs are the same.
Answer:
3
Answer:

Step-by-step explanation:
Let height of a banner be
, then we know that this is
of the length
of the banner; so we have
.
Now we can rearrange this equation to solve for the length of the banner given it's height:

So there we have it!
If the banner is 5 ft tall, then it's length will be:

They all contain matter, none of them are entirely empty and they all have gases inside, with the exception of B, which is water, which is a liquid
It is A x= -9 I just did the assignment so yes, this means it is -9 I hope m answer helps you out.