The cost of two brands of a household item is given. Find the unit price (price per ounce) and tell which is a better buy.

A: $6.15 for 24 fl oz of dishwashing liquid & B: $9.60 for 42 fl oz of dishwashing liquid

At a sand and gravel plant, sand is falling off a conveyor and onto a conical pile at a rate of 16 cubic feet per minute. the diameter of the base of the cone is approximately three times the altitude. at what rate is the height of the pile changing when the pile is 12 feet high? (hint: the formula for the volume of a cone is v = 1 3 πr2h.)

The depth of a lake at a certain point, wich is a function of the distance of that point from shore, is 30 feet.

An angle that measures between 90 and 180° is called a(,