PLZ HELP ASAP!?!?!?!?!?!?!?!?!? Billy and his three friends decided to divide 750 sports cards among themselves. Billy took 200 cards, Leroy took 20% of the cards, Jimmy took 3/10 of the cards, and Rodger took the cards that were left over.

A) 200
B) 175
C) 225
D) 150

An assembly consists of two mechanical components. suppose that the probabilities that the first and second components meet specifications are 0.87 and 0.84. assume that the components are independent. determine the probability mass function of the number of components in the assembly that meet specifications. x

Angle xyz is formed by segments xy and yz on the coordinate grid below: a coordinate plane is shown. angle xyz has endpoints at 3 comma negative 1 and 6 negative 2 and 3 comma negative 3 and measures 36.87 degrees. angle xyz is rotated 270 degrees counterclockwise about the origin to form angle x′y′z′. which statement shows the measure of angle x′y′z′?

What does independent variable and dependent variable mean in math?