If the length of a rectangle is x, and the width is x+3, what is the perimeter of the rectangle?

If you roll two fair dice (one black die and one white die), in how many ways can you obtain a 4 on at least one die?

Need same math paper but the back now i hope your able to read it cleary i need with hw

1/2+1/6-3/4 simplify the given expression leaving the answer in improper fraction form.