Given:
$2.50 off any electronic book for an online bookstore.
let p = original price in dollars
d = discounted price in dollars
p = d + $2.50
The equation above is the working equation to determine the original and discounted price of any ebook purchased by Jason. <span />
Answer:

Step-by-step explanation:

Answer:
B, -25
Step-by-step explanation:
3-4 = -1
-1(3 + 3^2 + 13) = -1(25), the answer is -25
Answer: First option is correct.
Step-by-step explanation:
Since we have given that

We need to find the correct difference.
Collect the like terms together.

Hence, First option is correct.