(5) you bought a magazine for $5 and four erasers. you spend a total of $25. how much did each eraser cost.

7x+8y=-18, 4x-9y=-3 solve the system of equations

In the diagram, points d and e are marked by drawing arcs of equal size centered at b such that the arcs intersect ba and bc. then, intersecting arcs of equal size are drawn centered at points d and e. point p is located at the intersection of these arcs. based on this construction, m , and m

Astudent was asked to find the square of 7x+3. the student quickly wrote (7x+3)^3= 49x^2+9. identify the student's error and provide the correct answer.