Janine is building a box with a height of 10 inches. The rectangular base of her box will have a perimeter of 72 inches. Select the equation where v represents the volume of the box and w represents the width of the base of the box.

v = -10w^2 + 720w
v = -100w^2 + 3,600w
v = -20w^2 + 720w
v = -10w^2 + 360w

If the sales price of a dvd is $20 and the markup is 34%, what is the cost of the dvd?

2.5 milligrams is equivalent to how many grams

Me with this assignment ! i only partially understand, so explain. also it's a work sample. at the championship bike race, steve and paula were fighting for first place. steve was 175 feet ahead of paula and had only 300 feet left to go. he was very tired and was going only 9 feet per second. paula was desperate to catch up and was going 15 feet per second. who won the bike race and by how far did she/he win?