Free Points enjoy answer would you rather be invisible or control weather

Giuseppi's pizza had orders for $931.00 of pizzas. the prices were $21 for a large pizza, 514 for a medium pizza, and $7 for a small pizza. the number of large pizzas was two less than four times the number of medium pizzas. thenumber of small pizzas was three more than three times the number of medium pizzas. how many of each size of pizza were ordered?

Which choice represents the sample space ,s for this event

What are the domain and range of the function f(x)=2^x+1