a recipe for cookies requires 1/3 cup of butter. annelise wants to make 2/5 of the recipe. how many cups of butter should annelise use to make the cookies?

Shiny white dental insurance costs $258 per year. approximately one-third of insured people need a filling, which averages $110 each. 80% of insured people get a preventive check-up each year, and the average cost of this visit is $95. if you consider shiny white’s income and expenses, what is the expected value of each insured customer?

Does the problem involve permutations or? combinations? do not solve. the matching section of an exam has 4 questions and 7 possible answers. in how many different ways can a student answer the 4 ? questions, if none of the answer choices can be? repeated?

If 1/√5+1/√5+1=p+q√r , find the values of p, q and r