What is the solution to this system of equations? 4x + 5y = 7
3x - 2y = -12

Multiply each equation by a number that produces opposite coefficients for x or y.

How many triangles can be drawn with side lengths 4 centimeters, 4.5 centimeters, and 9 centimeters? explain

The sum of 5consecutive even numbers is 100. what is the first number in this sequence?

Match the following reasons with the statements given to create the proof. 1. do = ob, ao = oc sas 2. doc = aob given 3. triangle cod congruent to triangle aob vertical angles are equal. 4. 1 = 2, ab = dc if two sides = and ||, then a parallelogram. 5. ab||dc if alternate interior angles =, then lines parallel. 6. abcd is a parallelogram cpcte