An office supplies salesperson sold $1,284 in week 1, $976 in week 2, $489 in week 3 and $1,042 in week 4

What is the vertex form of f(x) = x2 + 6x + 3

The heaviest 16% of all men in weight weigh more than how many pounds ?

Given the choice between receiving $1.000.000 in one month or a single penny-doubled everyday for the period of one month; which option would you choice? show your work to support your answer. (assume that 1 month=30 days)