1)Calculate the product:
21a + 10a - 3a
2)Collect like terms:
28a
Answer:
28a
Answer:
Each Angle of Decagon = 144 degrees
Step-by-step explanation:
The interior angles of a decagon add up to 1440
If they are of the same measure, then every angle will be equal to:
Each Angle of Decagon = 1440/10
Each Angle of Decagon = 144 degrees
Answer:
a=3
Step-by-step explanation:
a=3 because 5+4=9 and 9÷3=3
hope this helps!!
Answer:
C)
Step-by-step explanation:
A magician never tells there secret
