marquita works in a neighborhood store after school. During the week, she worked 3 hours from Monday to Friday and 5 hours on Saturday. For all these, she was paid $155. How much was she paid for each hour of work?

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’s the answer ? use the picture to see the problem

Ateacher brought a pack of 17 batteries . each calculator uses 3 batteries . how many calculator can the teacher fill with batteries