On a certain quiz with 25 questions, each correct answer is scored 4 points and each incorrect answer is scored –1 point. questions not answered receive no points. a student who answered 23 questions and had a total score of 82 points answered how many questions correctly? 18 19 20 21 22

The given dot plot represents the average daily temperatures, in degrees fahrenheit, recorded in a town during the first 15 days of september. if the dot plot is converted to a box plot, the first quartile would be drawn at __ , and the third quartile would be drawn at link to the chart is here

If the ratio of sum of the first m and n terms of an ap is m2 : n2 , show that the ratio of its mth and nth terms is (2m − 1) : (2n − 1).

Find the nonpermissible replacement for binthis expression.b2/5b +5