Need help ASAP with this question

What is the slope of the equation y =

Valentina is subtracting from . she finds the lcd to be 15y2. what is valentina's next step?

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?