Melanie read 45 pages of a 100 page book. her younger sister read 1/2 of a 10 page book. who read a greater fraction of her book, melanie or her sister show your work.

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?

Three numbers x, y, and z are in the ratio 2: 7: 8. if 12 is subtracted from y, then three numbers form a geometric sequence (in the order x, y–12, z). find x, y, and z. there are 2 sets.

What is 100,000 times 1/100,000, using the standard method of multiplication? write the answer as 10 to a power.