Which of the following is equivalent to 3a + 4b – (–6a – 3b) ?
a. 16ab
b. –3a + b
c. –3a + 7b
d. 9a + b
e. 9a + 7b

10% of 1,900,000. show me how you got the answer

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)

Kevin's bank offered him a 4.5% interest rate for his mortgage. if he purchases 3 points, what will be his new rate?