Answer:
$60
Step-by-step explanation:
How much did they pay for each uniform?
$4,000 / 40 = $100
They received upon return $40 for each uniform.
Difference: $100 - $40 = $60
ii have no clue what this is
7 is equal to x, so yeah
y=
To find inverse of something, just switch the variables
x=y^2
now try to solve back in terms of y