(a) Calculate the EXACT value of (3 marks) (b) Using a calculator or otherwise, calculate V 2.891 + 1.2 (1.31)2 giving your answer correct to 2 decimal places. (3 marks) (c) A jeweller paid $6 800 for 165 bracelets bought in China. The Customs Department in his country charged him $1 360 in duty. (i) Calculate the TOTAL cost of the 165 bracelets inclusive of duty. (1 mark) (ii) The jeweller sold the 165 bracelets at a selling price of $68.85 EACH. a) Calculate the TOTAL profit he made on the sale of the 165 bracelets. (2 marks) b) Calculate the profit as a percentage of the cost price, giving your answer to the nearest whole number. (2 marks)