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.

Write an inequality and solve each problem.for exercises 11 and 12, interpret the solution.

In the geometric progression –3, 12, −48… what term is 3,072?

Aliter of water contains about 3.35 x 10^25 molecules. a certain river discharges about 2.9x 10^8 l of water every second. about how many molecules does the river discharge every minute? write your answer in scientific notation