your friend says the greater common factor of 15 and 30 is 5 is your friend cprrect explain ur reasoning

This is different from the first one can someone me

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

Factor the polynomial by its greatest common monomial factor.