Corey was going to sell all of his stamp collection to buy a game for his gaming system. After selling half of his stamps, he changed his mind. He then bought 17 more. How many stamps did Corey start with if he now has 64

In what organelle does photosynthesis take place?

1jessica's home town is a mid-sized city experiencing a decline in population. the following graph models the estimated population if the decline continues at the same rate. select the most appropriate unit for the measure of time that the graph represents. a. years b. hours c. days d. weeks

The radius of the earth is two times the radius of the moon. what fraction of the volume of the earth is the volume of the moon?