32 rolls of ticket each roll has 100 how many ticket is order in all

Use the elimination method to find the solution to the system of equations. 2x - 3y = -9 -x + 3y = 6

When i add money am i supposed to make it like this 7+12 or 7.00+12.00 because i got 19 dollars for my answer

Jacks bank statement shows an account balance of -$25.50. which describes the magnitude, of size, of the debt in dollars