In 1963 the cost of a dozen eggs was 55¢. in 1965 the cost of a dozen eggs was 53¢. what is the percent of decrease in the cost of a dozen eggs? round your answer to the nearest tenth of a percent.

One cell phone plan charges $20 per month plus $0.15 per minute used. a second cell phone plan charges $35 per month plus $0.10 per minute used. write and solve an equation to find the number of minutes you must talk to have the same cost for both calling plans.