Round 6,215,446 to the nearest thousand

If c(x) = 4x – 2 and d(x) = x2 + 5x, what is (cxd)(x)

What is the remainder when 2872 is divided by 76? a) 51 b) 57 c) 60 d) 63

Which composition of similarity transformations maps polygon abcd to polygon a'b'c'd'? a dilation with a scale factor less than 1 and then a reflection a dilation with a scale factor less than 1 and then a translation a dilation with a scale factor greater than 1 and then a reflection a dilation with a scale factor greater than 1 and then a translation