Answer:
x = 16/y
or
y =16/x
Step-by-step explanation:
31=xy+15
subtract 15 from both sides of the equation:
xy = 16
x = 16/y
or
y =16/x
C, 60,480 i took thiis before it easy as
I don't know man my teacher is gonna have to deal with me leaving this blank lol.
I got it as 4 when calculating all have the same number which is 133