How many days is 48 hours? i don't know how to calculate that, ! ?

Which of the following statements is true about women and minorities in early psychology? a. in the early 20th century, numerous graduate schools recruited women and minorities to study psychology. b. opportunities in higher education were limited for women and minorities in the early 20th century due to discrimination. c. despite some obstacles, there were numerous employment opportunities for women and minorities. d. women and minorities were often selected to do academic research in an effort to make the field more diverse.

Under normal conditions, describe how increasing the temperatures effects the solubility of a typical salt

Efficiency is the ratio of to for a system a)power in to power in b)power in to power out c) power out to power out d) power out to power in