Find the interest earned on an account with $450 principal, and interest rate of 6% over a period of 8 years

Find an equation of the line perpendicular to the graph of 28x-7y=9 that passes through the point at (4,1)

Plot the intercepts to graph the equation

Isabel graphed the following system of equations. 2x – y = 6 y = -3x + 4 she came up with the solution (2,-2). what were the 3 steps she did to get that solution? (make sure they are in the correct order)