PLEASE HELP
Determine a quadratic function f(x) = ax2 + bx + c such that the maximum value of the function is 2 and the graph of the function has x-intercepts of 3 and 5.
A) f(x) = x2 − 8x + 15
B) f(x) = 2(x2 − 8x + 15)
C) f(x) = −2(x2 − 8x + 15)
D) f(x) = −2(x2 − 8x − 15)

A50% increase followed by 33 1/2% decrease

Can someone, me with this.i really need with this

Will give the box plots below show the math scores of students in two different classes: class a 55 72 75 89 95 class b 55 70 75 94 100 based on the box plots, which statement is correct? a: the median score of class a is greater than the median score of class b. b: the lower quartile of class a is greater than the lower quartile of class b. c: the upper quartile of class a is greater than the upper quartile of class b. d: the maximum score of class a is greater than the maximum score of class b.