Answer:
<em>Answer is</em><em> </em><em>given</em><em> </em><em>below with explanations</em><em>. </em>
Step-by-step explanation:
![given \: \: l = 5x - y \: and \: \: b = x + 4y \\ area \: of \: rectangle \:= l \times b \: sq.units \\ = (5x - y)(x + 4y) \\ = 5 {x}^{2} + 20xy - xy - 4 {y}^{2} \\ = 5 {x}^{2} + 19xy - 4 {y}^{2} \\ perimeter \: of \: rectangle \\ = 2(l + b) \\ = 2(5x - y + x + 4y) \\ = 2(6x + 3y) \\ = 12x + 6y](https://tex.z-dn.net/?f=given%20%5C%3A%20%20%5C%3A%20l%20%3D%205x%20-%20y%20%5C%3A%20and%20%5C%3A%20%5C%3A%20%20b%20%3D%20x%20%2B%204y%20%5C%5C%20area%20%5C%3A%20of%20%5C%3A%20rectangle%20%5C%3A%3D%20l%20%5Ctimes%20b%20%5C%3A%20sq.units%20%5C%5C%20%20%3D%20%285x%20-%20y%29%28x%20%2B%204y%29%20%5C%5C%20%20%3D%205%20%7Bx%7D%5E%7B2%7D%20%20%2B%2020xy%20-%20xy%20-%204%20%7By%7D%5E%7B2%7D%20%20%5C%5C%20%20%3D%205%20%7Bx%7D%5E%7B2%7D%20%20%2B%2019xy%20-%204%20%7By%7D%5E%7B2%7D%20%20%5C%5C%20perimeter%20%5C%3A%20of%20%5C%3A%20rectangle%20%5C%5C%20%20%3D%202%28l%20%2B%20b%29%20%5C%5C%20%20%3D%202%285x%20-%20y%20%2B%20x%20%2B%204y%29%20%5C%5C%20%20%3D%202%286x%20%2B%203y%29%20%5C%5C%20%20%3D%2012x%20%2B%206y)
<em>HAVE A NICE DAY</em><em>!</em>
<em>THANKS FOR GIVING ME THE OPPORTUNITY</em><em> </em><em>TO ANSWER YOUR QUESTION</em><em>. </em>
Answer:
3. [6x - 2y=2.
(2 + 6x=y
Step-by-step explanation:
9q-4=3r-6
+4=+4
9r=3r-2
9/9=3r-2/9
r=3r-2/9
Answer:
p: True, q: False, r: True
Step-by-step explanation:
Truth value only has two answer choices: true or false
p: True (there are 7 days in a week)
q: False (there are 31 not 30 days in March)
r: True (Halloween is on Oct. 31)
If not correct, write a message and I will try to help further.