2abc-3ab if a is 2, b is -3 and c is 4. evaluate the expression

Identify a1 and r for the geometric sequence an= -256(-1/4) n-1

The figures below are made out of circles, semicircles, quarter circles, and a square. 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).

What is the length and width of a 84.5 square foot rug? will mark