(a) A water tank in the form of a cuboid of height 22cm and a rectangular base of length 7cm and width 5cm is filled with water. The water is then poured into a cylindrical container of diameter 14cm. Calculate the height of the water in the cylindrical container.(Take π = 22/7)

(b)A trader is given 15% discount on goods bought from a factory. If the original price of an item in the factory is ¢45,000,000, calculate
i)the discount on the item
ii)the amount the trader paid for the item

(c) Find the truth set of ${{x-3}/3}≤{1/2}+x$