Anew school randomly assigns a six character student code to every prospective student. the school uses the characters 1, 2, 3, 4, 5, x, y, and z. if none of the student codes contain a repeated character, what is the total number of codes that can be randomly assigned?

Translate the word phrase into a math expression. 15 fewer than the product of 4 and a number. (pls immediately)

Shryia read a 481 -page-long book cover to cover in a single session, at a constant rate. after reading for 1.5 hours, she had 403 pages left to read. how fast was shryia reading? pages per hour how long did it take her to read the entire book? hours plz i realy need this

Which is a true statement comparing the graphs of x^2/6^2-y^2/8^2 = 1 and x^2/8^2-y^2/6^2 the foci of both graphs are the same points. the lengths of both transverse axes are the same. the directrices of = 1 are horizontal while the directrices of = 1 are vertical. the vertices of = 1 are on the y-axis while the vertices of = 1 are on the x-axis.