The line y=mx+c passes through the points (3,7) and (5,13).What are the values of m and c

In the coordinate plan (-6,9) b (3,9) c (3,3) def is shown in the coordinate plan below

Dakota earned $7.50 in interest in account a and $18.75 in interest in account b after 15 months. if the simple interest rate is 4% for account a and 5% for account b, which account has the greater principal? explain. to make it a little easier, there is an image. good luck!

How do the number line graphs of the solutions sets of -23 > x and x-23 differ?