A parabolic dish is positioned with its receiver 3 feet from the vertex. Write an equation for the parabolic cross-section
shown if the focus is located at the origin.
receiver
3 ft-

Ican figure out 20 shares multiply by $117.98 =2359.6920 shares multiply by $124.32=2486.40then take 40 shares multiply by $128.48=5139.20after that i'm lost any be greatly appreciated.

The square pyramid has a volume of 441 cubic inches. what is the value of x? 1/7x is the height x is the base

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