Justin bought a 20 pound pumpkin for $9.80.how much did he pay per pound

Find the value of x for which abcd must be a parallelogram -9-6x x-30

Rena is building a 1: 180 scale model of a real castle. her model has a rectangular base that is 3 feet wide and 4 feet long what is the area of the base of the actual castle in square feet

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).