Answer:
angle RST = C) 50 degrees
Step-by-step explanation:
angle TSQ and angle QSR are the same angle so plug them equal to each other finding x
2x+5 = 5x-25
minus 2x by both sides --> 5 = 3x - 25
add 25 to both sides --> 30 = 3x
now divide both sides by 3 getting x alone --> x = 10
now plug that back in to both equations to get the angles and add them together
25 + 25 = 50
