Will mart brainiest for these two answers kind of need them as soon as possible

Which system of linear inequalities is graphed? can somebody pleasssse

Abarbecue sold 26 hamburgers and hot dogs. hamburgers sell for $3.50 each and hot dogs sell for $2.00 each. if the barbecue made $70 in sales, determine and state the number of hot dogs sold.

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