How do you know that calculating 80% of the regular price gives you the same result as subtracting 20% from the regular price

Missouri has a shape that is similar to a trapezoid with bases of about 198 miles and 276 miles and a height of about 270 miles. what is the area of missouri in square miles? explain how you found the answer.

The following frequency table relates the weekly sales of bicycles at a given store over a 42-week period.value01234567frequency367108521(a) in how many weeks were at least 2 bikes sold? (b) in how many weeks were at least 5 bikes sold? (c) in how many weeks were an even number of bikes sold?

25 ! the line of best fit is h = 5a + 86. predict the height at age 16. show your work.