Joe took $12 to the arcade each game cost $.50 to play. this situation can be modeled with the equation y=-.50x + 12.
what is the slope of this equation?

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.