An ad in a local newspaper costs 34 per column inch A column inch is a unit of space that is 1 column wide and 1 inch high as shown below 1 inch I a Find the cost of an ad that is 1 column wide and 4 inches high b Write an expression for the cost of an ad that is 4 columns wide and 5 inches high O 34 4 5 034 4 5 034 4 5 O 34 4 5 34 4 5 34 Find the cost of the ad MINO