The directions on a bag of fertilizer indicate that one bag is enough to fertilize 0.5 acre. How could I find bags of fertilizer for 42 acres

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 of a hyperbola is shown. what are the coordinates of a vertex of the hyperbola? (0, −4) (−3, 0) (0, 0) (0, 5)

Gabrielle's age is two times mikhail's age. the sum of their ages is 84. what is mikhail's age?