Write 3/10 as a divison

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.

Solve 2x+y=3 x+y=5 in substitution method

If you are just building your payment history, how many points from a perfect score will you possibly miss?