it is proven that any number or expression raised to the power of zero is always equal to 1. In other words, if the exponent is zero then the result is
A container in the shape of of a frustum of a cone having diameters of its two circular faces as 35 cm and 30 cm and vertical height 14 cm, is completely filled with oil. if each of oil has mass 1.2 g, then find the cost of oil in the container if it costs $ 40 per kg.