Olevel mathematics . Please solve it in detail

2 (a) Using the information given in the advertisement shown, find the sale price of the table. SALE All prices reduced by 30% PERCENT Save $180 on this table Answer S 121 (h) Boris invests $550 at a rate of 2% per year simple interest Calculate the amount Boris has after 10 years. Answer S -121 (1) Complete the diagram to make a quadrilateral ABCD which has rotational symmetry of order 2 (lij Complete the diagram to make a quadrilateral PORS which has OR as Its line of symmetry. (b) [1) The diagram shows part of a figure that has rotational symmetry of order 4 about the point O. Complete the figure. (it) in the diagram, six small squares are shaded. Shade one more small square to give a diagram that has exactly one line of symmetry