3sisters are each 2 years apart in age. the youngest sister is emily the middle sister samantha and the older sister is lauren together their combined ages are 42. how old is each sister?

Acircle has the equation (x-2)^2 +y^2 =5. what are the coordinates of the circle's center?

Determine the difference: 3.2 × 1010 – 1.1 × 1010. write your answer in scientific notation.

Mariah is randomly choosing three books to read from the following: 5 mysteries, 7 biographies, and 8 science fiction novels. which of these statements are true? check all that apply. there are 20c3 possible ways to choose three books to read. there are 5c3 possible ways to choose three mysteries to read. there are 15c3 possible ways to choose three books that are not all mysteries. the probability that mariah will choose 3 mysteries can be expressed as . the probability that mariah will not choose all mysteries can be expressed as 1 −