The last math exam of the year was normally distributed with a mean of 85 and a standard
deviation of 5. Xavier needed at least a 95 on
this test to get an A for the year. His teacher
gave him his z-score: 1.8. Did Xavier get an
A for the year?

the answer i believe is 27 units.

step-by-step explanation:

well if he bought them at 5 cedis each sold them at 7 cedis each then he would make a profit of 2 cedis of each book. if in total he made 150 cedis profit that means he sold 75 books. he lost 12 books at the start so that means he originally bought a total of 82 books.

step-by-step explanation:

chemists are often responsible for designing a chemical reaction and analyzing the products obtained from it. one significant part of designing a chemical reaction is determining the amount of each reactant that is needed and the amount of each product that will be produced. in order to do so, chemists use stoichiometry, the quantitative relationships between reactants and products.