Answer:
1) x=5
2) x=72
Step-by-step explanation:
errrrrrr being behind on algebra is worrying but what's really worrying is that this is geometry.
but ye you it has an x in it
1) form a ratio out of the bottom sides
2:6=1:3
so x=5
2) make another ratio:
12:72=1:6
x=72
