Rewrite 1/2 * 1/2 * 1/2 * 1/2 as an exponential expression with a base of 2.

The difference of 2 numbers is 21 and the quotient of the equation is 4 then what are the two numbers?

Two blends of tea are mixed to make a blend that will be sold at the fair. black tea sells for $2.20 per pound and orange pekoe tea sells for $3.00 per pound. how much of each should be used to obtain a 4lb blend selling for $2.50 per pound?

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 .