Please help me Simplify: sqrt (4 - 3pi) to the power of 2

Simplify: sqrt (2pi - 4 sqrt 5) to the power of 2

If pressure and temperature remain constant, will the volume of gas in the respirometers increase or decrease?

Which allows college students to work part time jobs to pay for educational expenses

Based on the graph, how is coal consumption likely to affect future generations? a. the higher our current rate of consumption, the less coal will be available in the future. b. current rates of consumption are irrelevant because new coal will form in the future. c. the lower our current rate of consumption, the more slowly coal will be replenished for the future. d. regardless of current rates of consumption, coal will always be available.