The cost of advertising in a local paper for one week is: 28 cents per word plus 75 cents a) What is the cost of an advertisement of 15 words for one week? What is the greatest number of words in an advertisement costing up to $8 for one week? 25 b) c) If an advertisement is run for two weeks, the cost for the second week is reduced by 30%. Calculate the total cost for an advertisement of 22 words for two weeks.​