Half the shoes in one store were on sale what percent of the shoes were their ordinary price ​

Rectangle pqrs has length a and width 4b. the x-axis bisects ps and qr what are the coordinates of the vertices

Aswimming pool had 2.5 million liters of water in it. some water evaporated, and then the pool only had 22 million liters of water in it. what percent of the water evaporated?

Which shows the correct substitution of the values a,b and c from the equation 1=-2x+3x^2+1