Find the area of the figure. (sides meets at right angle)

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?

Lola says these two expressions have the same value. expression a expression b which explains whether lola is correct?

How to write four times a number,minus 6,is equal to theee times the number+8 as an equqtion