Jade had 3 dollars. she found 75 cents and then bought a book. she ended up with 5 quarters. which expression equals the number of dollars jade spent on the book?

The rows and columns of lattice points in a three-by-three square array are evenly spaced one unit apart. how many distinct triangles with at least one side of length 2 units can be drawn using three lattice points for the vertices?

The measure of one angle of an octagon is two times smaller that of the other seven angles. what is the measure of each angle?

Another type of subtraction equation is 16-b=7. explain how you would sole this equation then solve it.