Which step is not necessary when solving this system of equations by graphing?3x+y=9 5x-3y=1

The sales totals at macy's food store have increased exponentially over the months. which of these best shows the sales in the first three months?

If a translation of t-3,-8(x, y) is applied to square abcd what is the y-coordinate of b'? the y-coordinate of is 43 mark this and return save and exit next submit

Select the margin of error that corresponds to the sample mean that corresponds to each population: a population mean of 25, a standard deviation of 2.5, and margin of error of 5%