Which statement is NOT logically equivalent to the conditional statement? "If it is brown, then it is a bean,"
A)
"It is a bean or it is not brown."
B)
"It is not brown or it is a bean."
"If it is a bean, then it is not brown."
D)
"If it is not a bean, then it is not brown."

Solve for x -2.3(r - 1.2 ) = -9.66 enter you answer as decimal.

If f(x)=3x+1 and f^-1=x-1/3, then f^-1(7)=

The number if marbles of different colors stored in a hat is listed below: 4 red marbles 10 green marbles 7 blue marbles. without looking in the hat, dan takes out a marble at random. he replaces the marble and then takes out another marble from the hat. what is the probability that dan takes out a blue marble in both draws?