According to the Fundamental Theorem of Algebra, how many zeros does this function have?
f(x) = 2x - 3x4 - 5x® + 9x? - 10x + 7

Nell has a sales clerk job that pays $12 per hour for regular gas work hours. she gets double time for any hours over 40 that she works in a week. how many hours did nell work if her weekly pay was $744

Janie has $3. she earns $1.20 for each chore she does and can do fractions of chores. she wants to earn enough money to buy a cd for $13.50. write an inequality to determine the number of chores, c, janie could do to have enough money to buy the cd.

If the value of cos330°is√3/2 then find cos 165°.