Porfa ayuda : la suma de las areas de 2 irculos es de 65 pi cm^2. el radio del circulo mayor R mide 1cm menos que el doble del radio del circulo menor, encuentre la medida del radio de cada circulo ecuacion de segundo grado

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).

Zoey made 5 1/2 cups of trail mix for a camping trip. she wants to divide the trail mix into 3/4 cup servings. a. ten people are going on the trip. can zoey make enough 3/4 cup servings so that each person gets one serving? b. what size would the servings need to be for everyone to have a serving?

What is the axis of symmetry of the function f(x)=-(x+ 9)(x-21)