A librarian chooses seven holiday books from a selection of ten to be displayed in the window of the library. In how
many different ways can she choose the group of seven books?

she can use a spinner with 10 sections or a tree diagram I can't remember da rest so I hope dis helps :3

Step-by-step explanation:

4/6 = 2/3

so it should take 3/3 hours per man. so 9 hours is the answer 3*3 =9

step-by-step explanation:

let m = monomial

let t = trinomial

so, m times t = t.

monomial times a trinomial = another trinomial.