Since there are like terms, you can combine them
5a-2a = 3a
So, then you get
3a+9
Then you can factor to get a GCF of 3
3(a+3)
Answer: D. (8, 4)
Step-by-step explanation:
The answer is 360
112/280=2/5
144/2*5=360
Answer:
Range=15
Step-by-step explanation:
I know this because the range is when you subtract the highest number by the lowest number.
Answer:
94°, 120°, 152°
Step-by-step explanation:
- 78°=(b+36°)/2 ⇒ b/2=78°-18° ⇒ b/2=60° ⇒ b=120°
- 87°=(120°+x)/2 ⇒ x/2=86°-60° ⇒ x= 52°
- c=360°-(120°+52°+36°)= 152°
- a=(152°+36°)/2=94°