Distribute and simplify these radicals.
12.(-1+5)
0 -43
-273 + 215
473
63

Successful implementation of a new system is based on three independent modules. module 1 works properly with probability 0.96. for modules 2 and 3, these probabilities equal 0.95 and 0.90. compute the probability that at least one of these three modules fails to work properly.

Asocial networking site currently has 400,000 active members, and that figure is predicted to increase by 32% each year. the following expression represents the number of active members on the site after t years.

Sasha drank 8 bottles of water everyday for a week. how many bottles of water did she drink in total?