Which is an augmented matrix for the system of linear equations below? -4x+3y=216 10x-4y=-156

What is the solution to the equation? k/6.4=8.7 2.3 5.568 15.1 55.68

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!

If $740 is invested at an interest rate of 11% per year and is compounded continuously, how much will the investment be worth in 7 years? use the continuous compound interest formula a = pert.