Suppose that n(u) = 200, n(a) = 165, n(b) = 95, and n( a ∩ b ) = 80. find n( a c ∪ b ).

a. 85
b. 95
c. 15
d. 35
e. 115
f. none of the above.

On an airplane there are two seats on the left side and three seats on the right side there are 90 seats o the right side of the plane

Which expressions are equivalent to k/2 choose 2 answers: a k-2 b 2/k c 1/2k d k/2 e k+k

The chs baseball team was on the field and the batter popped the ball up. the equation b(t)=80t-16•16+3.5 represents the height of the ball above the ground in feet as a function of time in seconds. how long will the catcher have to get in position to catch the ball before it hits the ground? round to the nearest second