Find the slope of the line that passes through (7, 7) and (2, 5).

simplify your answer and write it as a proper fraction, improper fraction, or integer.

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

Ijust need these 2 questions answered (the second pic is just confirmation i'm not confident in that answer)

If x+y+z=0 what is the value of [tex] {x}^{3} + {y}^{3} + {z}^{3} [/tex]