Answer:
x = 5
$15.00 is the total amount of money Jamal has right? To find the remaining amount of money Jamal has subtract 15 - 7.5 (price of nachos) = 7.5 (remaining amount of money Jamal has.) Now for part 2, since the sour straws are $1.50 each you just have to multiply X to get close as close to the remaining amount of money as possible.
1.50× 5 (amount of sour straws) is equal to 7.50 (price of 5 sour straws).
To check your answer let's add the price of nachos (7.50) and 5 sour straws (7.50) which is 15.00 the total amount Jamal brought with him.
Let me know if you have any other questions :)
D) 36x^2-81
both 36x^2 and -81 are perfect squares
difference means subtraction
Answer:

Step-by-step explanation:
Given: 
Factorizing the numerator and the denominator, we have:
18
- 45q + 25 = 18
- 30q - 15q + 25
= (3q - 5)(6q - 5)
and
9
- 25 = (3q - 5)(3q + 5)
So that,
= 
= 
Therefore,
=