Since Angle QPS is a straight angle, it equals 180 degrees.
Angles QPR and RPS equal QPS.
Angle QPR + Angle RPS = QPS
(7x-4) + (9x-40) = 180
x=14
when it tells you what R is then you show a number line with -4 less then R
10 calories i believe because if you divide 100 divided by 10 that will equal 10
Is the question your asking the one at the bottom