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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?

The brain volumes (cm cubed) of 50 brains vary from a low of 904 cm cubed to a high of 1488 cm cubed. use the range rule of thumb to estimate the standard deviation s and compare the result to the exact standard deviation of 175.5 cm cubed, assuming the estimate is accurate if it is within 15 cm cubed

What effect would doubling all the dimensions of a triangular pyramid have on the volume of the pyramid? explain your reasoning.