Answer:
154
Step-by-step explanation:
Answer: 75°
Step-by-step explanation: the straight line is 180° and if you take 180° - 115°, you get 75°.
You don't need help; those look right. Write them as a fraction as requested, so the first is
Q1

Q2

No reducing required on that one.
Q3

Q4

Q5

I'll leave the rest.
Answer:
1/4 x 4 = 1 1/20 x 4 = 4/20 or 1/5 which means he can run 5 mile an hour