6. a tank contains 100-gallon of pure water. at time t = 0, a solution containing 2 lb of salt per gallon flows into the tank at a rate of 3 gallons per minute, and the well-stirred mixture flows out at a rate of 4 gallons per minute. find the amount (in lb) of salt q in the solution as a function of t in minutes.

Which of the following describes the symmetry of the graph of y = x3?

Which expression do you get when you eliminate the negative exponents of 4a^2 b^216a^-3 b

Suppose that the price p, in dollars, and the number of sales, x, of a certain item follow the equation 4 p plus 4 x plus 2 pxequals56. suppose also that p and x are both functions of time, measured in days. find the rate at which x is changing when xequals2, pequals6, and startfraction dp over dt endfraction equals1.5.