HELPP FAST PLS which triangles are similar to triangle abc?

The purple one, HGI.

Step-by-step explanation:

Because ABC has a 79 degree angle and also a  46 degree angle, and only HGI, not EDF has both those same angles. And if you're worried about that last, blank angle, then it will be the same because you always just need to get to 180 degrees so you will add the same #.

90

Step-by-step explanation:

Rewriting what is given: (0.09)(n)=30

Where n is the unknown number and 0.09 is the numerical form of 9%. Solving for n gives:

n=(30/0.09)=333.333

27% as a number is 0.27. So 27% of n is:

(0.27)(n)=(0.27)(333.333...)=90

27% of that number is 90.