Copy Machines, movie projectors, and coordinate grids all make images that are similar to (or scale drawings of) the original shapes. What does it mean to say two shapes are similar NEED ANSWER ASAP

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?

Determine which expressions represent real numbers and which expressions represent complex number. asaaap! plis!

1. evaluate 8x(2)y9(-2) for x=-1 and y=2 2. simplify the equation. -() 3. simplify the expression. [tex]\frac{5}{x(-2) y9(5)}[/tex]