Find the number of ways you can arrange (a) all of the letters and (b) two of the letters in the word WATER

41/17 as a decimal rounded to the nearest hundredth

Identify the number as a rational or irrational.explain. 127

Astudent must have an average on five test that is greater than it equal to 80% but less than 90% to receive a final grade of b. devon's greades on the first four test were 78% 62% 91% and 80% what range if grades on the fifth test would give him a b in the course? ( assuming the highest grade is 100%)