Target is having a 15% off sale on all headphones. Ryan bought a set of headphones that had a regular price of $180 during the sale. What is the total price Ryan paid including the 6.875% sales tax?

25 ! the line of best fit is h = 5a + 86. predict the height at age 16. show your work.

How do i multiply two digit numbers

Apinhole camera is made out of a light-tight box with a piece of film attached to one side and pinhole on the opposite side. the optimum diameter d(in millimeters) of the pinhole can be modeled by d=1.9[ (5.5 x 10^-4) l) ] ^1/2, where l is the length of the camera box (in millimeters). what is the optimum diameter for a pinhole camera if the camera box has a length of 10 centimeters