HELP ME PLEASE!! Y’all I’m taking a test I need help immediately

Apeak with a retention time of 407 s has a width at half-height (w1/2) of 7.6 s. a neighboring peak is eluted 17 s later with a w1/2 of 9.4 s. a compound that is known not to be retained was eluted in 2.5 s. the peaks are not baseline resolved. how many theoretical plates would be needed to achieve a resolution of 1.5?

Which of the following is not one of the steps in the scientific method a. hypothesize b. summarize c. analyze d. familiarize

What is the oxidation state of each individual carbon atom in c2o42−?