Somebody please help me help me on this it’s GEOMETRY it is URGENT please DO NOT waste my answers

Find the vertex of the function given below y=x^2-6x+1

What is the image of c for a 90° counterclockwise rotation about a? (3, 7) (-1, 3) (7, 3)

Ebuka's monthly rent is $750. if ebuka pays the rent late, his landlord charges 4% interest per week that the payment is late. write a function that gives the total cost r(t), in dollars, of ebuka's rent if he pays it t weeks late.