Answer:

Step-by-step explanation:
So we have the equation:

To solve, subtract 5 from both sides. This is the subtraction property of equality:

The left side cancels:

Subtract on the right.

So, our answer is -7.
Instead of typing it all on here, I included my explanations with the work.
R=16
J=32
20+40(which is 20×2)=60
20-4=16
16×2=32
Answer:
750/100 X 7 = 52.50
52.50 X 3 = $157.50
Step-by-step explanation:
divide principal amount by 100 then multiply by interest percentage. this gave 52.50
now multiply the interest amount by number of years
in this case 3
52.50 X 3 = $157.50