This week Laura worked 40 hours regular time and 3 hours overtime. If she earns $12.00 per hour regularly and gets 1% times that for overtime, how
much did Laura earn last week?
A $480
B $516
С $534
D $552
E $774

Melanie is buying a bathing suit that costs 39.99. she is given a discount at the cash register of $6.00 when she scratched 15% off on a game piece for a store promotion. what will the sale price of melanie’s bathing suit be?

I’ve been trying all day to figure this puzzle out. i need the work for it aswell. it is a factoring polynomials tarsia. the image is below.

How many and of which kind of roots does the equation f(x)=x3−x2−x+1