Christy earns money by working as a server at a restaurant and as a babysitter. last week she made $82 at the restaurant and spent 8 hours babysitting. if she made a total of $154 last week, how much does she earn per hours of babysitting?

Aparallel system functions whenever at least one of its components works. consider a parallel system of n components, and suppose each component works independently with probability 0.5. find the conditional probability that component n works given that the system is working

What is the sum of these mixed numbers 2 1/8 + 4 3/8

What is the shape of the height and weight distribution