Twenty five tickets to a concert cost $906.25 how much would it cost to buy 78 tickets

Assessment items item 1 garrett is a member of a movie club. he pays a monthly service fee of $5.75 and $2.50 for each movie he rents. which expression represents how much money he will spend for renting x number of movies a month?

Sum is 17 and their difference is 3

Find the center and the radius of the circle with the equation: x^2-2x+y^2+4y+1=0?