construct a polynomial function of least degree possible using the given information. real roots: -1,1,3 and (2,f(2))=(2,4)

Precalculus question, image attached.

In a tutoring session, 2/3 of an hour was spent reviewing math problems. adelina attended 3/4 of the tutoring session. how much time did adelina spend at the tutoring session?

Cate purchases $1600 worth of stock and her broker estimates it will increase in value by 4.2% each year. after about how many years will the value of cate's stock be about $2000