The school store sells blue and black pens. They have 52 blue pens and 78 black pens. They divide the pens into boxes of one color pen, with the same number of pens in each box. What is the greatest number of pens that could be in each box.

step-by-step explanation:

answer is  

c.

36

step-by-step explanation:

step-by-step explanation:

we have

using a graphing tool

see the attached figure

this is a quadratic equation (vertical parabola) open up

the vertex is a > vertex

the domain of the function is all real > interval (-∞,∞)

the range of the function is the > [-6.125,∞)

the function has two x->   and

the function is increasing over the > (0.25,∞)

the function is decreasing over the > (-∞,0.25)

answer: c. im 100 percent sure

step-by-step explanation: