Answer:
accounting=30, economics=15, only one=35
Step-by-step explanation:
a=2e
5 both
10 neither
40=a+e-5
45=a+e
45=2e+e
e=15
a=30
f
66+20+x=180(sum of angle in a triangle)
x=180-(66+20)
x=180-86
x=94
1/b^3