If x • y = z, which of the following statements is true? z/y=x
x/z=y

I need the right answer I'm on the last attempt plz

Correct answer brainliest asap an d 99 pointsss what are relative frequencies to the nearest hundredth of the columns of two way table column a 102, 18 colunm b 34, 14 answers choices 0.15 0.25 0.29 0.44 0.56 0.71 0.75 0.85

Solve the given system of equations. 2y= -x+9 , 3x-6= -15

Acomputer store bought a program at a cost of $10 and sold it for $13. find the percent markup