The answer is c. The problem can be solved graphically
x = # of hours the bike was rented.
$40 = $12 + $7x
Subtract $12 from both sides.
$28 = $7x
Divide both sides by $7
4 = x
Sandy rented the bike for 4 hours.

Expanding the left side gives

which gives two solutions,

and

. But if

, then

, but this number isn't real, so

is an extraneous solution. Meanwhile if

, you get

, so this solution is correct.
"Potential solutions" might refer to both possibilities, but there is only one actual (real) solution.
The first four-term of the sequence is found by the given equation
is given as 144, 36, 9, and 9/4.
<h3>What is a sequence?</h3>
A sequence is a list of elements that have been ordered in a sequential manner, such that members come either before or after.
The given equation will be

And

For n = 4, we have

For n = 3, we have

For n = 2, we have

More about the sequence link is given below.
brainly.com/question/21961097
2008 - 1626 -= 382
24 x (1.305)^382
= 12,229,955,10
Hope this helps