Rodrigo practiced playing the guitar 151_3 hours over the past 3 weeks. he practiced for 61_4 hours during the first week and 42_3 hours during the second week. how much time did rodrigo spend practicing during the third week? use the numbers and symbols to write an equation that represents the problem. then solve the equation. symbols may be used more than once or not at all.

Select the correct answer and solve for y

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 −

What are two numbers that have a sum of 15?