72. Explanation: 36+72=108.
<h2>1.</h2>
Firstly, combine like terms: 
Next, subtract r on both sides of the equation: 
Next, add 8 onto both sides of the equation: 
Lastly, divide both sides by 6 and <em><u>your answer will be r = 3.</u></em>
<h2>2.</h2>
Firstly, multiply both sides by e: 
Lastly, divide both sides by 3, and <em><u>your answer will be
</u></em>
Answer:
Step-by-step explanation:
No, Kayden is not correct.
Without even making any calculations, we can evaluate his answer.
When writing standard form, the decimal point should be before the second non-zero number.
While we do not say the answer to the multiplication given is not correct, the expression for the standard form is not
I
1. a
2. c
3. b
hope this helps
50 is 46.82 rounded to the nearest ten