Ineed the answer to the i need it explained

Alright so this is how it works: 
I use what's called the butterfly method
Step 1. Multiply the 1 and 9 
Step 2: divide your result by 4
and then that's your answer
h= whatever the result was when you divided by 4 

You said                                         h/9  >  1/4

Just multiply each side by  9 :        h     >  9/4

                                                       h     >  2 and 1/4 .

there are 96 wizards

step-by-step explanation:

20% of 120 is 24. if you subtract 24 from 120 you get 96

The vertex of the quadratic function is (1.5, -.75)