Sry if i’m wrong but i’m pretty sure he can spend $200 since you alr take out 30.
Answer:
Domain: 
Range: 
Step-by-step explanation:
The domain of a function is the set of values that one can input into a function and get a valid result.
The range of a function is the set of valid outputs that one can attain when a value is substituted into a function.
You would do (2x+60)+6x=180... when you simplify you get 15.
3 because 4×3=12 and if you divide12÷3/4 it helps you check
Not sure what the question is but 3x + 7 is the algebraic expression that would represent this statement.