Which of the following data represents an actual probability?
a computer randomly generates 6 out of 100 numbers.
an observer notes the number of pepperoni, cheese, vegetarian pizzas are ordered out of 100 orders.
none of the above.

Aclassroom is made up of 11 boys and 14 girls. the teacher has four main classroom responsibilities that she wants to hand out to four different students (one for each of the four students). if the teacher chooses 4 of the students at random, then what is the probability that the four students chosen to complete the responsibilities will be all boys?

If the perimeter of the square equals the perimeter of the regular pentagon. each side of a pentagon is 16cm long. how long is each side of the square?

Can anyone explain to me how to do this? anything will .