B CLASS
A
C С
BOYS
16 13 13
GIRLS
22 18
The table above shows three classes A, B
and C in a certain school. The three classes
are put together to select a prefect. What is
the probability that the prefect will be:
(a) a boy?
(b) a girl in class B?​

Arandom high school question but a hard one

Acommunity group sells 2,000 tickets for its raffle. the grand prize is a car. neil and 9 of his friends buy 10 tickets each. when the winning ticket number is announced, it is found to belong to neil's group. given this information, what is the probability that the ticket belongs to neil? a.1/5 b.1/10 c.1/200 d.1/4

This is a map of the mars exploration rover opportunity predicted landing site on mars. the scale is 1cm : 9.4km. what are the approximate measures of the actual length and width of the ellipse? i mostly need to know how to set it up : )