If I know that the binormal vector B(t) = T(t) x N(t) Can I make the following assumptions:
B(t) x N(t) = T(t)
B(t) x T(t) = N(t)

Me its important ! marge runs an ice cream parlor. her speciality is triple chocolate sundaes.she can prepare 1 sundae every 2 minutes, and she earns $1.20 for each sundae she makes . if she just makes sundaes for a single shift of at most 4 hours and at least 2 hours , which function relates her earnings to the number of minutes she works?