Solve the equation by using the square root property.
2) (3z - 18)^2 +59 = 14

Which linear inequality is represented by the graph?

Erik buys 2.5 pounds of cashews. if each pound of cashews costs $7.70, how much will he pay for the cashews?

Parabolas y=−2x^2 and y=2x^2+k intersect at points a and b that are in the third and the fourth quadrants respectively. find k if length of the segment ab is 5.