A particular basketball player hits90% of her free throws. When she tosses a pair of free throws, the four possible simple events and three of their probabilities are as given in the table.

	First Throw
Second Throw	Hit	Miss
Hit	0.81	0.09
Miss	?	0.01

(a)Find the probability that the player will hit on the first throw and miss on the second. (b)Find the probability that the player will hit on at least one of the two free throws.