Any one up for zoom thelegend907 wanna zoom

The most common economic system in the world is aclosed economy.command economy.mixed market economy.traditional economy.

Which statements about wells are true? check all that apply. a) wells bring groundwater from the unsaturated zone to the surface of the water. b) wells need to be drilled below the water table. c) if water is pumped from a well too quicky, the well may run dry. d) water from wells is generally not safe to drink. e) water gushes from artesian wells due to pressure.

In the diagram below, ab and bc are tangent to o. what is the measure of