You want to cut two ribbons into equal lengths with nothing left over. the ribbons are 18 and 42 inches long. what is the longest possible length of ribbon you can cut? is it 30 inches long each?

Find the value of x for which line a is parallel to line b

Will mark 50 show all what is the solution to the system of equations? use the substitution method and show your work. -5x+y= -3 -15 x+3y=7 explain what your answer in part (a) tells you about the association of the lines in this system.

Find the sum of the given arithmetic series. 24 + 17 + 10 + 3 + + (–39)