a) 3 themes
b) 2 locations
c) 3 days
d) 18 possible outcomes
see explanation below
Step-by-step explanation:
a) The themes in the tree diagram = space, safari, comics
Noah is considering 3 themes
b) The locations on the tree diagram = skating rink, park
Noah is considering 2 locations
c) Number of days of the week in the tree diagram = fri, sat, sun
Noah is considering 3 days of the week
d) The possible outcomes:
18 possible outcomes
{space, skating rink, fri}
{space, skating rink, sat}
{space, skating rink, sun}
{space, park, fri}
{space, park, sat}
{space, park, sun}
{safari, skating rink, fri}
{safari, skating rink, sat}
{safari, skating rink, sun}
{safari, park, fri}
{safari, park, sat}
{safari, park, sun}
{comics, skating rink, fri}
{comics, skating rink, sat}
{comics, skating rink, sun}
{comics, park, fri}
{comics, park, sat}
{comics, park, sun}