In how many ways can eight books be arranged on a shelf if the three math books
must be placed next to each other?

Ahomeowner plans to hang wallpaper on one wall of a bedroom that is 10 feet long if a stripe of wallpaper is 20 inches wide and stripes or hung vertically how many stripes on wall paper with the homeowner required

Which statement justifies why angle ebc measures 90?

What is the axis of symmetry of the function f(x)=-(x+ 9)(x-21)