3. To change a negative angle into a positive angle, you would?

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.

Look at attachment. has all info needed. need

Sara made $253 for 11 hours of work. at the same rate how much would he make for 7 hours of work?