Factor the gcf: 6x4y3 + 21x3y2 − 9x2y. 3xy(2x3y2 + 7xy − 3x) 3x2y(2x2y2 + 7xy − 3) 3x2y3(2x2 + 7xy − 3) 3x2y(2x2y + 7xy − 3y)

Second option :

Step-by-step explanation:

Given expression .

We need to find greatest common factor (GCF) of all the terms.

Let us write all terms in expanded form first.

We can see that first factor is 3 common, second factor is and third factor is y.

Therefore, GCF would be

Now, let us factor out GCF and keep the remaining terms inside parenthesis.

=

answer: the first one

step-by-step explanation: use a calculator and divide the minutes by the dollars.

the figures below are made out of circles, semicircles, quarter … find the area and the perimeter of each figure and give your answers as a completely simplified exact value in terms of π (no approximations). remember that we'll also have to cut whatever areas we get in half, since we're only dealing im pretty sure that is the right answer

step-by-step explanation: