What is 10450 rounded to the nearest hundred

The length of a rectangle plus its width is 25 cm. the area is 156 square cm. what are the length and width of the rectangle? separate the answers with a comma.

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).

Which value of m will create a system of parallel lines with no solution? y = mx - 6 8x - 4y = 12