Simplify a - {5b - [a - (3b - 2c) + c - (a - 2b - c)]}.

-a - 6b + 4c
a - 6b + 4c
a - 10b + 4c
-a + 10b + 4c

How do i do this activity, is appreciated

Describe the 2 algebraic methods you can use to find the zeros of the function f(t)=-16t^2+400.

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