The table shows the amounts of food collected by two homerooms. homeroom a collects 21 additional items of food. how many more items does homeroom b need to collect to have more items per student?

What is the correlation coefficient for the data? don't forget to turn the diagnoisticon (in the catalog menu of the calculator). r = answer (round to the nearest thousandth)

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

The area of a rectangle is 10 cm^2. one side of the rectangle is x cm. express the perimeter of the rectangle in terms of x and show that this rectangle cannot have a perimeter of 12 cm. the perimeter of the rectangle in terms of x is __ cm