If $7500 is invested at an interest rate of 5% each year, what is the value of the investment in 4 years? write an exponential function and solve.

An exponential function is:      

Value of the investment in 4 years is, $9,116.29688

Step-by-step explanation:

Using formula of an exponential function

            .....[1]

where

A(t) is the amount

P is the principal

r is the rate of interest in decimal

t is the time in years

As per the statement:

P = $7500

r = 5% = 0.05

t =4 years

then substitute these in [1] we get;

⇒

Simplify:

Therefore, the value of the investment in 4 years is, $9,116.29688

5x+40

5(x + 8)

7x - 49

7(x - 7)

18x + 9

9(2x + 1)

15x - 10

5(3x - 2)

step-by-step explanation:

for number one all you have to do is factor 5 out of 5x + 40

for number 2 factor 7 out of 7x - 49

for number three factor 9 out of 18x + 9

for number four factor 5 out of 15x - 10