NEED HELP ASAP GIVING 25 POINTS PLZ FOLOW THE INSTRUCTIONS

The circumference of a circle is 5 pi cm. what is the area of the circle?

What is the probability of drawing three queens from a standard deck of cards, given that the first card drawn was a queen? assume that the cards are not replaced.

For the rule of 78, for a 12-month period, the last term in the sequence is 12 and the series sums to 78. for an 10 month period, the last term is and the series sum is . for a 15 month period, the last term is and the series sum is . for a 20 month period, the last term is and the series sum is