Please help omg please:( just please I don’t wanna fail

Agreeting card company can produce a box of cards for $7.50. if the initial investment by the company was $50,000, how many boxes of cards must be produced before the average cost per box falls to $10.50?

You buy a veido game for $60 and the sales tax is 8% what is the total cost for the game including the sales tax

G. how many different 6-letter arrangements can be formed using the letters in the word absent, if each letter is used only once? a. 6 b. 36 c. 720 d. 46,656