How many times smaller is a group of 7 coins than a group of 21 coins?

Explain the difference between a physical change and chemical change

How did the duwamish people the first settlers in seattle adapt to their new environment? check all that apply. they built longhouses for the settlers. they offered the settlers weapons. they gave the settlers food. they the settlers farm and fish. they taught the settlers to trade.

Which is not a claim kennedy made? a. the fact that communist cuba is so close to american soil is one reason we need to accelerate our space program. b. his decision to shift the study of space to one of the highest american priorities was one of his most important decisions as president. c. within these last months at least 45 satellites have circled the earth. (i think it's this one) d. the mariner spacecraft now on its way to venus is the most intricate instrument in the history of space science. i need this answer really quick, so .