Is 770 x 6 = 77 x 6 x 100 true or false?

Can you answer my question? will mark brainiest!

What is the value of x? enter your answer in the box. photo attached.

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.