Paul was thinking of a number. Paul adds 10, then divides by 2 to get an answer of -13. What was the original number?

-36

Step-by-step explanation:

-13= n+10/2

-13×2=n+10

-26=n+10

-26-10=n

-36=n

the ratio of balloons to tables is 5: 2 and the constant variation is 5.

the equation is y=5x