Answer:
I think it is C
Step-by-step explanation:
Reason being because the question said at least 15 points more so it can't
be 12 equal to 12 points. so you could eliminate the greater than or equal to.
so that leaves c and d. can't see how it is D because if he has 15 points more can't see why his other portion of points could take away 15 so that leaves C.
hope that helps
It has reflectional symmetry
Let's solve for "r" by bringing them all to one side.
-3r=6-4r
+4r +4r
r=6
So, r is equal to 6.
Answer:
A
Step-by-step explanation:
hope i helped you out :)
Answer:
Decrease by 20%.
Step-by-step explanation:
We have to find the percent of increase or decrease from n to 
.
Now, 
So there is a decrease fro n to .
Now, the percentage of decrease will be given by
= ![[ \frac{\textrm {Original Value - Final Value}}{\textrm {Original Value}}]\times 100 \%](https://tex.z-dn.net/?f=%5B%20%5Cfrac%7B%5Ctextrm%20%7BOriginal%20Value%20-%20Final%20Value%7D%7D%7B%5Ctextrm%20%7BOriginal%20Value%7D%7D%5D%5Ctimes%20100%20%5C%25)
= ![[ \frac{n - 0.8n}{n}]\times 100 \%](https://tex.z-dn.net/?f=%5B%20%5Cfrac%7Bn%20-%200.8n%7D%7Bn%7D%5D%5Ctimes%20100%20%5C%25)
= 20% (Answer)
