How do you write 5 and 9 tenths in expanded form

What is the approximate value of  q  in the equation below? –1.613–1.5220.5853.079

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.

Angle m aoc=108° m aob=3x+4° m boc=8x-28° find m aob