Answer:
B, C
Step-by-step explanation:
Answer:
This term would not change at all when combining like terms.
Step-by-step explanation:
Because the first term has a variable and the second does not, they can not be combined. Therefore, there is not change to this assignment
Answer:
50
Step-by-step explanation:
a + 30 + 20=100
100-30=70
70-20=50
Acute Angle- Smaller than 90 degrees
Obtuse Angle- Bigger than 90 degrees
Right Angle- 90 degrees