You need a 45% alcohol solution. On hand, you have a 270 mL of a 55% alcohol mixture. How much pure water will you need to add to obtain the desired solution?

Is the figure congruent? yes or no?

Gravel is being dumped from a conveyor belt at a rate of 25 ft3/min, and its coarseness is such that it forms a pile in the shape of a cone whose base diameter and height are always equal. how fast is the height of the pile increasing when the pile is 14 ft high? (round your answer to two decimal places.) ft/min

Run a linear regression to determine an equation (y=mx+b y=mx+b)