IS P(AB)
=
P(An B)
P(B)
Freshmen
Sophomores
Juniors
Seniors
3
4
Boys
2
Girls
7
9
6
5
P(Girl|Sophomore)
=
9
?

The? half-life of a radioactive substance is 20 years. if you start with some amount of this? substance, what fraction will remain in 120 ? years

Kevin's bank offered him a 4.5% interest rate for his mortgage. if he purchases 3 points, what will be his new rate?

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