Which agency advises the president about the safety of the country?

Combine like terms. do not forget to use the distributive property to simplify the first term. 2(3y + 5k) - 2k

If scientists only detect p waves in a certain layer of earths interior what does that tell us?

You have been tasked with sorting the rock samples shown into three categories, with two rocks in each category. what attribute would you use to sort these rocks? which rocks would be in each category? rocks: obsidian, coquina limestone, granite, soapstone,pumice, and gneiss.