Sales aer in multipules of 1000
normally the output is y and input is x
input would be number of months
output would be the sales
so
subsitute 40 for x
y=0.94*(40)+12.5
y=37.6+12.5
y=50.1
this is in thousands
times 1000
$50,100 is the sales after 40 months
It will be less because the number less then 2 3/4 is smaller then that
So this would be yes she does pass the course because 4/5 is bigger than 75