Given ΔPQR ∼ ΔXYZ, which must be true? Select all that apply.
A. PQXY=PRXZ
B. m∠Pm∠X=m∠Qm∠Y
C. QR=YZ
D. m∠R=m∠Z

is there answer choices?

ummm seems that u didnt post the attachement !

take the logarithm of both sides (the base of the log doesn't matter):

apply the exponent property - this says that :

distribute the log terms on both sides:

group like terms together:

divide through both sides by the coefficient on :

you can do some additional rewriting here using the properties of the logarithm to simplify things if you like: