cost of 3 pens is equal to that of 5 copies. what will be the cost for 25 copies if 9 pens and 7 copies cost Rs.264

According to the data set, where should the upper quartile line of the box plot be placed?

George writes the mixed number as sum and uses the distributive property 1/2.-2/5=1/2-2+2/5=1/2

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%)