A college survey was taken to determine where students study. Of 106 students surveyed, 64 studied in the library, 53 studied in the student lounge, 20 studied in both the library and the student lounge. Of those interviewed how many did not study in either the library or the student lounge?

Please help!

step-by-step explanation:

given that there are two triangles j'k'l' and jkl>

the former is got by dilating the second one.

when drawn on a grid, (graph paper) coordinates of vertices of first triangle is

(6,12)j, (9,6)k and (12,9)l

side jk has length = distance between j and k

=

side j'k'=distance between j' and k'

=

ie j'k'l' has sides 1/3 of that of corresponding sides of jkl.

hence scale factor of 1/3 is used to get j'k'l'from jkl

it is x equals 3   plese mark me really need it

step-by-step explanation:

not sure but it may be b, as i said i'm not sure.