What are the common factors of 12w and 15wz

The GCF or greatest common factor of 12w and 15wz would be 3w

Step-by-step explanation:

The coefficients 15 and 12 without variables have the factor 3 in common and no others than themselves and 1. After finding 3 is the starting factor, next is to look at the variable after the coefficients which are wz and w. Since both 12w and 15wz only share w, lt will then be 3w as the greatest factor.

Hope this helps!

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:

47 - 90 = 43

43 - 180 = x

x = 137