PLEASE HELP ASAP WORTH ANOTHER 100 please get it right

GBC and BEP are similar by AA because angle GBC and angle PBE are vertical angles and thus equal and GCB and angle EPB are equal because they are both supplementary to the same angle, angle RPB. GCB is supplementary to RPB because they are consecutive angles of a parallelogram and EPB is supplementary to angle RPB because they are a linear pair.

BP (200) and BC (300) are corresponding sides so the ratio of the sides of GBC to BEP are 3:2.

Sides GB and GC of triangle GBC corresponds to sides BE and PE of triangles BEP. We are given the lengths of GB and GC and can use the 3:2 ratio to determine BE and PE.

Step-by-step explanation:

x is the total time in minutes for the free response

you are given number of questions as 15 - m and time per item as 8 minutes

to find x multiply the two givens together:

x = 8 * (15-m) = 8(15-m)