A store has a sale on pet supplies. The price ,P, of each item is marked down 25%. The store also offers a coupon for $5 off when you check out. Write an expression that represents the final price after a customer uses the coupon.

0.7125*P

Step-by-step explanation:

The original price of a product is P.

The products are marked down 25%, so the sale price of the products are

75% of P = 0.75*P

Then, in the check out, the store offers a coupon for 5% off, so the sale price will decrease 5%, that is, will be multiplied by 0.95:

Final price = 0.75*P * 0.95 = 0.7125*P

problem:

f(x) = - 2/3x + 5; f(5/2)

substitute 5/2 in for x:

f(5/2) = -2/3(5/2) + 5

simplify the right side:

f(5/2) = -5/3 + 5

f(5/2) = 10/3

f(5/2) = 10/3

i hope this !