Answer:
Step-by-step explanation:
-/7? imagine that there is an -1 as the numerator. so now -/7 turns into -1/7
Answer:
5
Step-by-step explanation:
90-36=54
54-24=30
Answer:
D. 100°
Step-by-step explanation:
A straight line is 180°. Add 50° and 30° (which is 80°) and subtract the total from 180°.
50 + 30 = 80
180 - 80 = 100