Answer:
x=3
Explanation: 11-5=6
6/2= 3
Plug 3 into the equation and you get 2x3+5=11 which 2x3=6 and 6+5=11
It would be an obtuse angle
It depends on how many boxes max puts in. If max puts 2 boxes in the larger one then the box would be approximately 350 cubic inches
B. Isosceles. that is the correct answer