Answer:
A
Step-by-step explanation:
The answer is m∠R = 48.59
°
Answer:

Step-by-step explanation:
Hello,
<u>The mean of five numbers is 8</u> so we can write

<u>When another number is added the mean is 7</u>, let s note x the another number we can write

From the first equation we can say

So the second equation becomes

The solution is then 2
Hope this helps
The answer to 25. is A
and
to 26. is C (I'm not sure on this one but i think this is the answer)