3 ^(1 − 7 x = 7 ^x find the exact value

One line passes through (-7,-4) and (5,4) . another line passes through the point (-4,6) and (6,-9)

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

Aquadrilateral has exactly one pair of parallel sides. which name best describes the figure?