The area of a circle is 196 pi square inches. what is the exact length of the circle's radius?

Which of the following answers is 7/9 simplified? 7/9 2/9 11/9 2/7

Li buys supplies so he can make and sell key chains. he begins to make a profit only after he sells 4 key chains. what point on the graph makes the most sense in this situation?

If you are dealt 4 cards from a shuffled deck of 52? cards, find the probability that all 4 cards are diamondsdiamonds.