Answer:
The greatest common factor of the given expressions is

Step-by-step explanation:
Given that 
can be written as

can be written as

and
can be written as

Comparing the common factors we have
is the greatest common factor of 
Therefore the greatest common factor of the given expressions is

Answer:
its c
Step-by-step explanation:
bc lifting weight takes energy
Answer:
Step-by-step explanation:
2x-3= 12
+3 +3
2x = 15
/2 /2
x= 7.5
Answer:
Combine the like terms
Step-by-step explanation:
2 + 7 = 2x + 5 - 43
The first step is to combine the like terms
9 = 2x - 38
Answer:
500,000km
Step-by-step explanation:
Scale: 1cm:50000km
10 cm = 50000*10km
10 cm = 500000km