Answer:
150
Step-by-step explanation:
30=chocolate chip
120=sugar
30+120 = 150!
the answer is 150 not sure why its not one of the options
So firstly, subtract x on both sides: 
Next, divide -2 on both sides, and your answer will be y = 1/2x - 3/2 , or the last option.
<span>Postulates are helpful because it helps you plan and solve geometry problems.
That's my guess. It doesn't tell me in the text either.</span>