the average demand for rental skis on winter saturdays at a particular area is 150 pairs, which has been quite stable over time. there is variation due to weather conditions and competing areas; the standard deviation is 20 pairs. the demand distribution seems to be roughly normal. the rental shop stocks 170 pairs of skis. what is the probability that demand will exceed this supply on any winter saturday? round your answer to four decimal places.

Afarmer began a new method of reducing grain spills. this reduced the number of mice on the farm. the number of snakes in the surrounding area decreased at the same time. the snakes depended on the mice that lived in the field. what’s the likely reason the snake population decreased? a. the number of snake predators increased. b. the number of mice increased. c. the number of mice decreased. d. the pesticides affected the snakes. e. a new breed of mice moved into the field.

Guys plz and say a best answer i will give 15 points how we should prepare for a scholarship exam

Blank is the amount of energy in a sound wave per unit of time and is also related to the loudness of a sound