PLZ HELP THIS IS TIMED Bobby borrowed $500 at 12 percent simple annual interest. He paid back $680 to pay off the loan. How many years did it take Bobby to pay back the loan? 3 4 11 12

3 years

500/100×12=60

Total Interest = 680-500 = 180

Total Time = 180/60 = 3

omg what happend to your question? if you could edit this question i can

step-by-step explanation:

answer: since the question is talking about growth you have to use the growth formula which is inital amount (1 + growth)^time

step-by-step explanation:

the intial amount is 1200, the growth is 4.8, and the time is 7. plug those numbers into the equation, also i think you have to change 4.8 into a percent. but, i have forgotton how to do that. if this is a online class go on to the lesson.