Jordan invested $800 in a savings account the interest rate is 6% per year find the simple interest earned in three years then find the total of principal plus interest

Principal , P =$800

Rate , r = 6% = 0.06

Time , t = 3 years

Simple Interest = P*r*t = 800*0.06*3 = $144

Total Interest plus Principal = $800 + $144 = $944

step-by-step explanation:

you can add the two numbers and divide the result by 2. or you can find the gap between the two numbers and add half of this to the smaller number.

to find the perimeter of the rectangle this is the expression:

x-9+x-9+3x-4+3x-4=138

if we simplify it:

8x-26=138

remember, 138 is what it all adds up to

the length is 11.5cm

the width is 57.5cm

the area is 661.25cm^2

the answers might not be correct use at own risk