where is the X axis distance for one standard deviations of the data if your mean is 3 the standard deviation is 0.4

A50% increase followed by 33 1/2% decrease

Elena is paid a constant rate for each hour she works. the table shows the amounts of money that elena earned for various amounts of time that she worked.

You need to solve a system of equations. you decide to use the elimination method. which of these is not allowed? 3x - 2y = 7 3x + 4y = 17 equation 1 equation 2