Answer:
68
Step-by-step explanation:
∠DPG and ∠EPF are vertical angles, so they are equal.
7x = 4x + 48
3x = 48
x = 16
So ∠DPG is:
∠DPG = 7x
∠DPG = 112
∠DPE and ∠DPG are supplementary, so they add up to 180:
∠DPE + ∠DPG = 180
∠DPE + 112 = 180
∠DPE = 68
