A baking club makes and sells cookies to raise money for a school dance. The ingredients to make the cookies cost a total of
$
75
.
The cookies are sold for
$
2.50
each.
Which function can be used to find
p
, the total profit earned by the baking club after selling
k
cookies?

p
=
2.5
k
−
75

p = 2.5 k − − 75

p
=
2.5
k
+
75

p = 2.5 k + 75

p
=
75
k
−
2.5

p = 75 k − − 2.5

p
=
75
k
+
2.5