Answer
-2.25 -13/5 1 3/5 -2.25
Step-by-step explanation:
Answer: $4.50
Step-by-step explanation: If it is 50% off then you take the price of $2.25 and double it. So 2 times $2.25 which is $4.50.
The answer is 12.24745 or 5/6
Answer:

Step-by-step explanation:
Combine like terms.

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<span>(a+7) * (a-4)
a^2 - 4a + 7a - 28
a^2 + 3a - 28</span>