Answer:
5/14
Step-by-step explanation:
P(A or B) = P(A) + P(B) − P(A and B)
25/28 = 23/28 + 12/28 − P(A and B)
P(A and B) = 10/28
P(A and B) = 5/14
3 terms
https://youtu.be/0sq2PMQ_Nak
use that video to help you.

No real solutions, because for all real numbers the square of number is greater or equal 0.
Measure of z is 116°.The measure of y is 48°.Hope this helps.