First insert 4 into the place of every z. Making the problem 7(4) -4. Next multiply 7 and 4 to get 28, then simply subtract 4. Your answer will be 24
Answer:
75°
Step-by-step explanation:
sum of angles of a triangle=180°
∠Q+∠R+∠S=180°
39+66+∠ S=180°
105+∠S=180
∠S=180-105=75 °
(0,-100) should be your answer, but do some research beforehand. If my answer is incorrect, please tell me so-- I'll try to correct my answer.
Answer:

Step-by-step explanation:
I did this before. Also sometimes once I look at the question I just find out the answer without steps.