You only need a common denominator for adding and subtracting! <span />
Answer:

Step-by-step explanation:
Evan spent 20 hours doing homework last week
25 hours were spent this week.
<u>Let's see what 125% of 20 equals:</u>
= (125 / 100) * 20
= (125 / 10) * 2
= 125 / 5
= 25 hours
But,
<u>It is written that Evan thought he spent 125 % more than the last week which means:</u>
= (125% of 20) + 20
= 25 + 20
= 45 hours
He should've said that he has given 25% more time than the last week.
(<u>Note that:</u> 25 % of 20 equals 5 so 25 % more than last week will be equal to (25 % + 20) = (5+20) = 25)
![\rule[225]{225}{2}](https://tex.z-dn.net/?f=%5Crule%5B225%5D%7B225%7D%7B2%7D)
Hope this helped!
<h3>~AH1807</h3>
Cat hikibccvbmikjkvbbnm Cohn
Answer:
7x when x=2=<em>7</em><em>×</em><em>2</em><em>=</em><em>1</em><em>4</em><em> </em><em>is</em><em> </em><em>your</em><em> </em><em>answer</em>
I think it’s C because 5n means multiplying both integers