The correct answer is y=-13/10x+13 as it matches the graph
Hope this helped :)
You don't use it usually because teachers usually say use 3.14 as an approximation
JKM = M + L
15x - 48 = 40 + 5x + 12
10x - 48 = 52
10x = 100
x = 10
JKM = 15(10) - 48 = 102
180 = JKM + MKL
180 = 102 + MKL
MKL = 180 - 102 = 78
48 x 8.25% = 3.96
Now add 3.96 + 48
Answer 51.96
