Are you smarter than a 7th grader we will see

Two parallel lines are crossed by a transversal.what is value of x

Gabriel determined that his total cost would be represented by 2.5x + 2y – 2. his sister states that the expression should be x + x + 0.5x + y + y – 2. who is correct? explain.

How can you find the magnitude of a vector, v = < x,y > , where the horizontal change is x and the vertical change is y?