A) how many charges will the electric car needs to travel from Boston, Massachusetts,to Miami, Florida, a distance of 1486 mi, if its capable of going 210 km on a single charge?

B) If a migrating loon flies at an average speed of 17 m/s , what is its average speed in mi/hr?

C) In March 1989 the Exxon Valdez ran aground and spilled 240,000 barrels of crude petroleum off the coast of Alaska. One barrel of petroleum is equal to 42 gal. How many liters of petroleum were spilled?

D) Calculate the number of grams of sulfuric acid in 0.580 L of battery acid if the solution has a density of 1.33 g/mL and is 39.0 % sulfuric acid by mass. (Note: Automobile batteries contain sulfuric acid, which is commonly referred to as "battery acid")
Please show work on all.
Thank you guys....and girls too...