Please help me with part A B and C can you write the answers and show me how you get it in a notebook please

The mean of a set of data is -3.82 and its standard deviation is 2.31. find the z score for a value of 3.99.

Planning for the possibility that your home might get struck by lighting and catch on fire is part of a plan for ?

Joseph haydn pet store offers wide variety of leashes for dogs. the store purchases one popular type of leash from its manufacturer for $4.38 each. joseph haydn pets marks up leashes at a rate of 238% of cost. what is the retail price of the popular leash?