What is the greatest common factor of 3x^4, 15x^3, and 21x^2?

Factor completely. 4p^2 + 36p + 81 express the answer in the form (ap + b)^2

Avegetable garden and a surrounding path are shaped like a square that together are 11ft wide. the path is 2ft wide. find the total area of the vegetable garden and path

You are making a blueprint of your bedroom and you plan to use a scale factor of 18 . the actual width of your room is 14 feet and the actual length of your room is 16 feet. determine the width and length of your room on the blueprint. on the blueprint, your room will have a width of feet and a length of feet.