Answer:
The correct answer is C. 13
Step-by-step explanation:
It is 13 because all triangles equal 180
so 125+42+13=180
The 15th term of the arithmetic sequence 
Option B is correct
The nth term of an arithmetic sequence is given as:

The first value, a = 22

Since 

The common difference, d = 3

The 15th term of the arithmetic sequence = 64
Learn more here: brainly.com/question/24072079
Answer:
10 miles per hour
Step-by-step explanation:
speed= distance/time
30/3
=10
Answer:
Step-by-step explanation: the pattern is going positive to negative and going further away from zero so the next term would be -3