In a class of 30 plumbers, the average (arithmetic mean) score of the male plumbers on the final exam was 87. if the average score of 18 female plumbers in the class was 93, what was the average of the whole class?

¿qué parte de la patagonia está en peligro de exinción por su sobrepesca?

This country is the world's leading producer of cork?

Select the correct answer from each drop-down menu. this map shows how climate change might affect precipitation patterns in the great plains of the united states by the end of this century. brown shows a decrease in precipitation, and blue shows an increase. the maps differ based on the predicted levels of greenhouse gas emissions. the maps show that northern areas should get . southern areas will likely get . to use these maps to prepare for natural disasters in the great plains, scientists need to ask, ?