Please help me , I have to go to school in 1 hour and I really need help

Sum is 17 and their difference is 3

Arestaurant charges $100 to rent its banquet room for an event. it also charges $15 to serve dinner to each guest. write an equation for the total cost of the banquet room in terms of the number of guests. deine your variables. what is the total cost of the banquet room for 20 guests?

Find the solution(s) to x^2-14+49=0