Cards in a pack are black or red in the ratio black : red = 2:5
What fraction of the cards are red?

Agraph of a trapezoid can have diagonals with slopes that are negative reciprocals and two pairs of adjacent sides that are congruent, true or false, and why

Select the margin of error that corresponds to the sample mean that corresponds to each population: a population mean of 25, a standard deviation of 2.5, and margin of error of 5%

Graph y = -|x| + 2. click on the graph until the correct one appears.