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(a)Find the inverse of the matrix #[[9,8],[7,6]]#. (b) In certain week a businessman bought 36 bicycles and 32 radios for a total of ksh.227,280.In the following week ,he bought 28 bicycles and 24 radios for a total of ksh.174,960.Using matrix method ,find the price of each bicycle and each radio that he bought.
(c) In the third week,the price of each bicycle was reduced by 10% while the price of each radio was raised by 10% .The businessman bought as many bicycles and as many radios as he had bought in the first two weeks .Find by matrix method ,the total cost of the bicycles and radios that the businessman bought in the third week.