Suppose a bathtub is filled 60 gallons of with water. At t = 0 seconds, the drain plug is pulled an the water begins the drain at a rate of 3 gallons per minute. Write a linear equation to represent the cost as a function of hours.

In an experiment you are to flip a two sided coin 100 times and record 55 heads up and 45 tails up determine the theoretical and experimental probability of getting a heads up in the experiment.

Y=4x^2+x-1 solve using quadratic formula

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?