What is the percent change of a price decreased from $25 to $10 ?

The ratio of the measures of the three angles in a triangle is 2: 9: 4. find the measures of the angels

What are the solutions to the following equation? |m| = 8.5 the value of m is equal to 8.5 and because each distance from zero is 8.5.

A3-dimensional figure has a square base and 4 lateral faces that meet at a point. explain the difference between the cross sections when a slice is made perpendicular to the base through the vertex, and when a slice is made perpendicular to the base and not through the vertex