Andy and elizabeth each rounded 2,639,456 to the nearest ten thousand. andy got 2,640,000.elizabeth got 2,630,00.who is correct

Clara solved the equation 7/3x = −2/3 as shown → 7/3x( 3/7 ) = −2/3 ( 3/7 ) x = −14 what is clara’s error?

Which graph represents the function g(x) = |x + 4| + 2?

The distribution of the amount of money spent by students for textbooks in a semester is approximately normal in shape with a mean of $235 and a standard deviation of $20. according to the standard deviation rule, how much did almost all (99.7%) of the students spend on textbooks in a semester?