I think it is distributive property maybe i’m not too sure
You would times 2/15 by 3. Then getting 6/15, simplify the fraction by dividing both numbers by 3. You would finally get 2/5 which is C. Hope this helps!
Answer:

Step-by-step explanation:
<em>add 8 to both sides</em>

<em>divide both sides by 9</em>

Answer:
x=1/2, y=4
Step-by-step explanation:
Double both sides of the top equation:
4x+6y=26
Now subtract boths sides of the second one from the first one:
(4x+6y) - (4x-y) = 26 - (-2)
7y = 28
so y = 4
4x-y=-2 so 4x-4=-2
4x=2
x=1/2
Answer:
500 students.
Step-by-step explanation:
300 votes is 60%.
100%-60% is 40%
so 40% voted for the other person.
Work backwards:
x * 0.6=300
0.6x=300
x=300/0.6 which is 500.
500*0.4 is 200.
300+200 is 500.
Hope this helps :) I am terribly sorry if it is wrong or not using the number line.