PLZ HELP! WILL GIVE BRAINLIEST!

A.  $946.16

Step-by-step explanation:

First, when you set up the problem, you have to multiply .31 by the amount of money she has. Which gives you the answer of $1039.74. Next, you multiply .09 by $1039.74, which gives you answer of $93.5766. Now you just have to round it an it gives you answer of $946.16. I hope this helps, and I am so sorry if I am wrong!

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.