700 + 80 + 2^2?
I have no idea rly lol
I = PRT...and since we are looking for r.....I / PT = R
I / PT = R
I = 510
P = 3000
T = 4
510 / (3000 * 4) =
510 / 12,000 =
0.0425 .....multiply by 100 to get the percent
4.25% <==
The difference between 1/8 and 6/10 = 0.475 , does this help?