If your profit in a deal was 15% and you got rupees 120 the deal was worth

Percentage of profit made on the deal = 15%
Amount of profit made on the deal = rupees 120
Let us assume the deal was worth the amount = x
Then we can get the equation as
15x/100 = 120
15x = 120 * 100
15x = 12000
x = 12000/15
   = 800 rupees
So the deal was worth 800 rupees. Most of the required information’s are already given in the question. Only thing is using those information’s to get to the required answer.

If you would like to know how much was the deal worth, you can calculate this using the following steps:

15% of the deal is 120
15% * x = 120
15/100 * x = 120     /*100/15
x = 120 * 100 / 15
x = 800

Result: The deal was worth 800.

1.17+3.99a. you combine the terms with a to create 3.99 and the 1.17 stays because it has no like terms or a variable