How to round 8,230 to the nearest thousand

Which inequality is equivalent to -3x < -12? x < 4 , x < -4 , x > 4, x > -4

If f(x) = 6x – 4, what is f(x) when x = 8? a2 b16 c44 d52

Anumber is equal to twice a smaller number plus 3. the same number is equal to twuce the sum of the smaller number and 1. how many solutions are possible for this situation