How can you use a graph to check a factorization?

Which value of m will create a system of parallel lines with no solution? y = mx - 6 8x - 4y = 12

Which of the following pair(s) of circles have las a common external tangent? select all that apply. a and b a and c b and c

You just purchased two coins at a price of $670 each. because one of the coins is more collectible, you believe that its value will increase at a rate of 7.1 percent per year, while you believe the second coin will only increase at 6.5 percent per year. if you are correct, how much more will the first coin be worth in 15 years?