The greatest common factor for 21 is 7
For 30 is 15
49 is 7
I’m no totally sure but i think that is right
Answer:
Its the first option.
Step-by-step explanation:
if they are both 180° then they can both go on forever without touching each other.
Answer:
9
Step-by-step explanation:
9514 1404 393
Answer:
h(g(x)) = (1/5)x² +4/5
Step-by-step explanation:

An equivalent ratio would be 7:10 or 70:100 or 42:60 and so on...