Which one is it i rlly need this ill give like 25 or 10 pointa

Brady has a 20 year fixed rate mortgage for $215,500 with monthly payments of 1,305.89.the annual interest rate is 4%. what is the total cost of the principal and interest for this loan rounded to the nearest dollar

What number should be added to both sides of the equation to complete this square? x^2-10x=7

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