I need help with this! ASAP

When turned about its axis of rotation, which shape could have created this three-dimensional object?

Find the zeros of each function. f(x) = x^2 + 5x - 6

Several paint mixtures are made by mixing blue paint and white paint. paint colors blue paint white paint mixture a 5 cups 12 cups mixture b 6 cups 6 cups mixture c 4 cups 12 cups mixture d 5 cups 6 cups which mixture has the highest ratio of blue paint to white paint