3950 is in between
is the answer
The way your problem is set it should be simplified to this....4x + 55
Answer:
D.
Bob should use the mean to make his selling price look like it's the greatest.
<span>Income earned over one year is principal * int rate so we have
0.12*A + 0.13*B +0.14*C = 400
and A + B + C = 3000
and A+B = C</span>