Which of the following is an example of conditional probability.
a: probability of hitting a home run
b: probability of getting an a on a test, given that you didn't fail the test
c: probability of drawing a club from a deck of 52 cards
d: probability of getting an a on a test

If there are 12 moths and some have 31 days and others have 30 days how many have 28 days?

Problem melissa is her dad build a walkway in their backyard. the walkway will be 54 feet long and 1.5 feet wide. the local hardware store sells tiles which are 1.5 by 1.5 feet and come in boxes of 12. how many boxes of tiles do they need?

Angle xyz is formed by segments xy and yz on the coordinate grid below: a coordinate plane is shown. angle xyz has endpoints at 3 comma negative 1 and 6 negative 2 and 3 comma negative 3 and measures 36.87 degrees. angle xyz is rotated 270 degrees counterclockwise about the origin to form angle x′y′z′. which statement shows the measure of angle x′y′z′?