40 percent is your answer. The fraction form would be 2/5 or 4/10. 4/10= to 40%
0.08x+0.075 (6000-x)=472.5
Solve for x
0.08x+450-0.075x=472.5
0.08x-0.075x=472.5-450
0.005x=22.5
X=22.5/0.005
X=4500 invested at 8%
(Bc)/(ab)=tan1
(Ef)/(ec)=tan2
Angle 1= angle 2
Tan1=tan2
(Bc)/(ab)=(ef)/(ec)
...
I don't get any of the answers. If I go by order of operations I would multiply 1*9 first and get 9. Then 33+9+12=54
Sorry.
