Which is an example of the associative property? Question 1 options:

A. x + 5 = 5 + x

B.(x + 3) + 7 = x + (3 + 7)

C.3 • (x + 5) = 3 • x + 15

D. If x = a, and a = 7, then x = 7.

There were 816 people at a concert when a band started to play. after each song, only half the people stayed to hear the next song. how many people were left at the concert after x songs? write a function to represent this scenario.

Use set builder notation to represent the following set: { -3, -2, -1, 0}

Will give brainliest plz hurry lexie surveyed 4 teenagers to find out approximately how many hours, per week, they read for fun, and how many siblings they have. brooke said she reads about 10 h a week for fun, and that she has 5 siblings. celia said she has 1 brother and 1 sister and reads for fun about 3 h each week. henry said he has 2 brothers and reads for fun about 30 min each week. jude said he doesn't read for fun and has 3 brothers and 3 sisters. use this information to complete the data table. express your answers as whole numbers or decimals. name hours of fun number of siblings brooke celia __ henry jude