What’s the answer to this question?

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

Can someone me with the property questions for 12 13 and 14 plz

You wanted to draw an enlargement of design that printed on a card that is 4 in by 5