Help me solve the problem at the bottom please

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.

What is the 9th term in the geometric sequence described by this explicit formula? an=-6. (2)(n-1) apex

Which of these triangle pairs can be mapped to each other using a single translation? cof hn