Select all the correct ratios. Select the ratlos whose simplest form Is 7/8

48:42 24 : 32 36:48 18:27 16:14 12:9 30:20 56:49 36:24

What is the circumference of the pie

What is the perimeter of an equilateral triangle if each side is (x+3)?

The volume of a spherical hot air balloon v(r) = 4 3 ? r3 changes as its radius changes. the radius is a function of time given by r(t) = 3t. find the instantaneous rate of change of the volume with respect to t at t = 2.