What is 1,872,521 rounded to the nearest thousand!me!

Which of the following tables represents exponential functions?

What is the correlation coefficient between the variables? round to three decimal places. enter your answer in the box

50 will mark show all use the linear combination method to solve the system of equations. explain each step of your solution. if steps are not explained, you will not receive credit for that step. 2x+9y= -26 -3x-7y=13