If 2.5 pounds of a certain grain cost $1.75, how much will 5.3 pounds of the grain cost?

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.

Secant ac and bd intersect at point e inside f what is the measure of aed if measurements cd equals 30 a b is 50 and cb is 170

Which of the functions graphed below has a removable discontinuity?