A submarine first went down 725 feet below sea level. It then went up 150 feet. What was the final depth of the submarine?

How do you write something in scientific notation?

Linda loans her friend $250 with a 5% monthly intrest rate. how much was the whole loan?

Abakery recorded the number of muffins and bagels it sold for a seven day period. for the data presented, what does the value of 51 summarize? a) mean of bagels b) mean of muffins c) range of bagels d) range of muffins sample # 1 2 3 4 5 6 7 muffins 61 20 32 58 62 61 56 bagels 34 45 43 42 46 72 75