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

2.4+3.2t. you get the answer by adding the ones with variables and ones without

The scale factor of what ?

This is what i found “an explicit formula designates the nth term of the sequence, as an expression of n (where n = the term's location). it defines the sequence as a formula in terms of n. this example is an arithmetic sequence(the same number, 5, is added to each term to get to the next term).” i hope this you for what your looking for. can you plz mark me brainliest?