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(a) The product of matrices `[[0,1],[2,p]]` and `[[−1.5,−0.5],[p,p−2]]` is a singular matrix. Find the value of p
(b) A sales woman earned a fixed salary of ksh x and a commission of ksh y for each item sold .In a certain month she sold 30 items and earned a total of ksh 50,000.The the following month she sold 40 items
and earned a total of ksh 56,000.
(i) Form two equations in x and y.
(ii) Solve the equations in (i) above using matrix method .
(iii) In the third month she earned ksh 68,000.Find the number of items sold.