One kilometer equals 1000 meters.
Answer:
Step-by-step explanation:
i think you messed up the options, but assuming the function is this:

then the correct factorized form is:

The function is degree 2 ( because of the x^2) so it is non-linear.
Mathematical equation -
20 + 0.50x = ?
X is the placeholder which in this case equals months
But in this case you want to look for form month three to month 18 (which is 15 months) so three months went by so the equation is
$61.50(being the three months already)
(20+(0.50*15))+61.50=?