ASAP HURRY Drag the descriptions of each investment in order from which will earn the least simple interest to which will earn the most simple interest.
from least to greatest please help: investment of 1,200 at a 12% interest rate for 5 years, investment of 1,200 at a 12% interest rate for 9 years, and a investment of 1,200 at a 6% interest rate for 9 years.

The descriptions of each investment from  least to greatest are:

An investment of 1,200 at a 12% interest rate for 5 years will be:

I = A - P = $720.00

Note that:

A = P(1 + rt)

Therefore,

r = R/100 = 12%/100 = 0.12 per year.

So:

A = 1200(1 + (0.12 × 5)) = 1920

A = $1,920.00

So, The total amount accrued, principal plus interest, from simple interest on a principal of $1,200.00 at a rate of 12% per year for 5 years is $1,920.00.

At an investment of 1,200 at a 12% interest rate for 9 years:

A = $2,496.00

I = A - P = $1,296.00

Note that

A = P(1 + rt)

Therefore:

r = R/100 = 12%/100 = 0.12 per year.

So:

A = 1200(1 + (0.12 × 9)) = 2496

A = $2,496.00

Therefore, the total amount accrued, principal plus interest, from simple interest on a principal of $1,200.00 at a rate of 12% per year for 9 years is $2,496.00.

At an investment of 1,200 at a 6% interest rate for 9 years.

Note that:

I = A - P = $648.00

The Equation is:

A = P(1 + rt)

Therefore,

r = R/100 = 6%/100 = 0.06 per year.

So

A = 1200(1 + (0.06 × 9)) = 1848

A = $1,848.00

So, The total amount accrued, principal plus interest, from simple interest on a principal of $1,200.00 at a rate of 6% per year for 9 years is $1,848.00.

So, the descriptions of each investment from  least to greatest are:

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