If ƒ
a. = k, then which of the following must be true?
a) ƒ( k ) = a
b) ƒ -1( k ) = a
c) ƒ -1( a ) = k

What is the distance between point a and b

1. if events a and b are non-overlapping events, how do you find the probability that one or the other occurs? 2. what does it mean if p(a or b) equals 1?

$30 to spend on dinner tax and gratuity at mos restaurant rax is 6% and they give a 15% tip on the total bill after taxes thier dinner cost $21 which statement correctly explains wether andrew and kate have enough money to pay their bill