Let me know if i got it correct.

for the problem:

When x number of units are sold, the price of each unit (in dollars) is given by p =-x/2 +75 . Find the unit price when the following quantities are sold: 2,7,9,11.

My answer:
for 2= you gave me the answer of $74
This is what i got for the rest.
for 7= 71.50
for 9=70.50
for 11=69.50

yes it is

thank you.