Answer:
A
Step-by-step explanation:
i have the same thing XD
60=2*(3x-10)+2*(2x+5)
60=6x-20+4x+10
60=10x-10
70=10x
x=70/10
x=7
since HG=EF
SO HG=3x-10
which is (3*7)-10
=21-10=11
Answer: 5 because it is the greatest common factor
1. 2^6 x 2^4= 2^10
2. 5^3 x 5^8= 5^11
3. c^7 x c^2= c^9
4. r^2 x r= r^3