A8 year old boy has 7 different toys and wants put them all in a straight line. in how many ways can this be done

The tile along the edge of a triangular community pool needs to be replaced? ?

Graph the system of equations on your graph paper to answer the question. {y=−x+4y=x−2 what is the solution for the system of equations? enter your answer in the boxes.

What are the solutions of the following system? y=-2x^2 y=x-2