A rock with a mass of 25 g is added to a graduated cylinder containing 45 mL of water. The water level rises to the 50mL mark. Based on this information, what is the density of the rock?

Mp model with mathematics explain how the number of text messages dario sent and the cost form an arithmetic sequence.then write an expression to find dario's text messaging bill if he sends n text messages over 250.

How to choose the sign of the radical in the denominator of the formula for the distance from a point to a line.

Find the number of real number solutions for the equation. x2 + 5x + 7 = 0 0 cannot be determined 1 2