$29 Average purchase per customer: Average cost to make and distribute Twitter: Your cost per click was S0.26 and 50,000 people saw the ad. S20 he ad generated a click thru rate of 5% and a conversion rate of 4%. Facebook: Your cost per click was s0.38 and 80,000 people saw the ad. The ad generated a click thru rate of 4% and a conversion rate of 2%. Google Search: Your cost per click was $0.23 and 35,000 people saw the ad. The ad generated a click thru rate of 11% and a conversion rate of 496. For each of the three campaigns, calculate (a) the number of click thru's, (b) the number of purchases, (c) the incremental revenue, and (d) the ROI. SHOW YOUR CALCULATIONS& Organize your answer clearly