Please help with this

A company is trying to calculate The cost of conversion for its online advertising campaign. It is placing 3 ads in total. Fill in the following chart to see what their cost per conversion is for their campaign (5 marks). Round clicks to whole numbers and T C & C/C to two decimal places. Ad Impressions CTR % Clicks Cost/Click Total Cost Conversions Cost/Conversion 11 000 4.50% a) $0.48 e) 10 i) 2 52 000 2.50% b) $0.22 f) 8 3 39 000 1.50% C $0.75 g) 8 K) 4 22 000 0.5% $0.30 h) 9 Total Which of these ads is most effective? (1 mark) If you were to place all four ads what is the total cost of the program? (1 mark)