Find the 20th term of the following sequence. -6, -4, -2, 0

32.

Step-by-step explanation:

This is an arithmetic sequence with first term a1 = -6 and common difference 2.

an = a1 + d(n - 1)

a20 = -6 + 2(20-1) = 32

this is answer of 144 cubic meters

let m = monomial

let t = trinomial

so, m times t = t.

monomial times a trinomial = another trinomial.