Suppose that y varies jointly with w and x and inversely with z and y = 320 when w = 6, x = 20, and z = 3.

Evaluate 4 a for a = 5 2/3 . express your answer in simplest form.

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

The graph shows the distance kerri drives on a trip. what is kerri's speed . a. 25 b.75 c.60 d.50