8xy + 3xy + x
please help, no wrong answers, thank you!

What is the value of y? round to the nearest tenth

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.

Having a hard time understanding this question (see attachment).