Divide 15 by 2, then square the amount.
(15/2)^2 = 225/4
<span>Maybe xy is also given ........................</span>
The difference of the expression
is 
<h3>How to determine the difference?</h3>
The expression is given as:

Factor the denominators of the expressions:

Apply the difference of two squares to x² - 9

Take LCM

Hence, the difference of the expression
is 
Read more about expressions at:
brainly.com/question/723406
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Answer:
V=250.3cm³
Step-by-step explanation:
V=1/3 × π x 5.4² cm x 8.2cm
V= 1/3 x π x 5.4² cm x 8.2cm
V= 1/3 x π x 29.16 cm x 8.2cm
V=250.39cm³
V=250.3cm³
$5.12
Each pie requires 1/2 a cup of lemon juice, you make 2 pies so you need a cup of lemon juice. There are 16 tbsp to a cup, each lemon has 2 tbsps of juice, so you’ll need 8 lemons. Each lemon cost $0.64
8*0.64= $5.12