If the Annual Rate of Return from an Investment Is $\int _ { 0 } ^ { 3 } ( - 3000 + 125 t ) ^ { - 0.085 t } d t$

Multiple Choice

If the annual rate of return from an investment is -3000 + 125t, find the present value of the income generated in the third year if the interest rates are 8.5%.

A) $\int _ { 0 } ^ { 3 } ( - 3000 + 125 t ) ^ { - 0.085 t } d t$
B) $\int _ { 2 } ^ { 3 } ( 125 t - 3000 ) e ^ { 0.085 t } d t$
C) $\int _ { 0 } ^ { 3 } ( 125 t - 3000 ) e ^ { 0.085 t } d t$
D) $\int _ { 2 } ^ { 3 } ( - 3000 + 125 t ) ^ { - 0.085 t } d t$
E) none of these