The most simplified version of it is 49/50
(x,y)
(3.5,10.5) this is where they meet
C.
9987 × 1.04 = 10386.48
10386.48 - 1950 = 8436.48
8436.48 × .25 = 6327.36
Are there any multiple choice if not then it would be the inverse operation and that is multiplication so 36 divided by 4 =9 and 9 x 4=36