The equation x2 + 2y2 = 36 represents which conic section?

Which term best describes the association between variables a and b

Ahome improvement store rents it’s delivery truck for $19 for the first 75 minutes and $4.75 for each additional 1/4 hour. if a customer rented the truck at 11: 10 am and returned the truck at 1: 40 pm the same day, what would his rental cost be?

Simplify the expression. -2/5(10+15m-20n)