Apply the Distributive Property to simplify the following expression. Select the correct answer.

(−9)×4.2+(−9)×1.8=

−50
−54
−48

The ratio pv to nrt is plotted against pressure for ch4 at 0°c and 200°c. why does the curve for 0°c drop below the horizontal line for an ideal gas whereas the curve for 200°c does not?

The volume of a sphere is increased by 6%. calculate the corresponding percentage increased in it area.

Sarah took the advertising department from her company on a round trip to meet with a potential client. including sarah a total of 11 people took the trip. she was able to purchase coach tickets for $280 and first class tickets for $1280. she used her total budget for airfare for the trip, which was $6080. how many first class tickets did she buy? how many coach tickets did she buy?