At the gym, cara burns 12 calories per minute on the elliptical and 10 calories per minute on the treadmill. if she worked out for one hour and burned 676 calories, how many minutes did she spend on the elliptical

The number of revolutions of two pulleys is inversely proportional to their diameters. if a 24-inch diameter pulley making 400 revolutions per minute is belted to an 8-inch diameter pulley, find the number of revolutions per minute of the smaller pulley.

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

Show your workcan a right triangle have this sides? *how to prove it without using the pythagorean theorema*