If C = 3t-1+t^6 and D = 2t + 7, find an expression that equals 2C - 2D in standard form.​

In a circle, a 45° sector has an area of 32π cm2. what is the radius of this circle? 32 cm 12 cm 16 cm 8 cm

What is the relationship between all triangles that can be drawn given the same three angles

Two cars which are 40 miles apart start moving simultaneously in the same direction with constant speeds. if the speed of the car which is behind is 56 mph and the speed of the other car is 48 mph, how many hours will it take for the car which is behind to catch up the car ahead of it?