A ticket to a theme park costs £42 plus 7% booking fee. What is the total cost of ticket

Which property was used to simplify the expression? 3c+9 +4c=3c+4c+9

For the chance to be team captain, the numbers 1-30 are put in a hat and you get two chances to pick a number, without replacement. which formula correctly shows how to find the probability that you choose the number 1 and then 2?

If set d is not the empty set but is a subset of set e, then which of the following is true? d ∩ e = d d ∩ e = e d ∩ e = ∅