Y varies inversely with the square of
x
.

y
is also proportional to the cube of
z
.

When
x
=
3
,
y
=
80

When
x
=
2
,
z
=
5

Calculate
y
when
z
=
15
.

Nour and rana are shopping for a christmas tree. they are deciding between 2 22 different types of trees (real and fake) and 4 44 colors for the ornaments (white, silver, gold, and purple). they each created a display to represent the sample space of randomly picking a type of tree and a color for the ornaments. whose display correctly represents the sample space?