Robert works at a car dealership. each month, he receives a base salary of $1,685.00, plus a commission of $465.00 for each vehicle he sells. which of the following equations could be used to determine robert's total income each month? (let x represent the number of cars sold by robert and y represent his total monthly income.)
a.
$1,685y = $465x
b.
y = $465x + $1,685
c.
y = $465x
d.
y = $1,685x + $465