Christina used 21 centimeters of tape to wrap 3 presents. How much tape will Christina need in all if she has to wrap 5 presents? Solve using unit rates.

Abird on top of a 200 ft bridge tower sees a man standing on the lower part of the bridge (which is 50 ft above the ground). the angle of depression from the bird is 26 ̊. how far is the man from the base of the bridge tower? with explanation and pictures .

Rewrite 9 log, x2 in a form that does not use exponents. 9log, x = log, x

Common binomial factor of 6x(3x+7)+5(3x+7)