how u dont know this stuff shhhhh on yo ahh boi
Answer:
c
Step-by-step explanation:
Because you can't have multiple x-values. You can only have multiple y-values.
We will have the following:
Using exponential regression we will have that the line of best fit will be:

Now, we will have that:

So, the approximation using linear regression gives us as solution approximately 29.7 years; thus the closest one to match is then
3x5=$15
15+10=$25 total to spend
He spends 12.75+8.5= $21.25
25-21.25=$3.75 left