Variables are letters from the end of the alphabet
Economics always uses the firsts letter of whatever that letter is representing.
<span> An </span>expression<span> such as 4x</span>3<span> is a </span>variable<span>. It can assume different values because x can assume different values.</span>
Answer: 
Step-by-step explanation:
Using the same-side interior angles theorem, 
.
Using the alternate interior angles theorem, 
Answer:
-31>v
Step-by-step explanation:
look above there
hope it helps
2/7 not sure but that's what i got
Answer:
40x² + 65x + 25
Explanation:
We will just multiply each term from the first bracket by each term from the second and then combine like terms to get the final expression.
This would be done as follows:
(5x + 5)(8x + 5)
5x(8x) + 5x(5) + 5(8x) + 5(5)
40x² + 25x + 40x + 25
40x² + 65x + 25
Hope this helps :)
