Which of the following is a valid comparison between the possible minimum and maximum values and f the y=-x^2+4x-8

Ineed to know the answer to this algebra question.

Aschool allots ? 1500 to spend on a trip to the theatre. theatre tickets have a regular cost of ? 55 each and are on offer for 1 5 off. a train ticket for the day will cost ? 12 each. if 2 teachers and the maximum number of students attend, how much money will the school have left over?

What is the name of a polygon that has four congruent sides and theses angle measures 60,120,60,120?