Nicole is half as old as Donald. The sum of their ages is 72.
How old is Nicole, in years?

24

Step-by-step explanation:

The sum of the their ages is 72. 48 divided by 2 is 24. 48 plus 24 is 72

(a) the volume of the cone is 20/3 in3

hence, option a is correct.

let m = monomial

let t = trinomial

so, m times t = t.

monomial times a trinomial = another trinomial.