What is the greatest number that can be divided evenly into 78 and 104 without leaving a remainder?

26 can be divides evenly into 78 and 104 without leaving a remainder

option a is correct.

step-by-step explanation:

scale factor: it is used to find proportional measurements.

proportions means having the same ratio.

scale factor is the ratio of the model measurement to the actual measurement in a simplest form.

or we can say that the ratio of any two corresponding lengths in two similar geometric figures

if the scale factor is more than 1, then it is an enlargement,

if the scale factor less than 1, then it is a reduction.

given the two geometric figure:

by definition of proportions, we have

the first one is x^2+2x+2

the second one is x^2+4

the last one is x^2-4x+8