А
3х - 5
В
4х – 30
2x + 20
с
What is the value of x?

X=[ ]

The graph below plots the temperature and luminosity of stars on the main sequence.

Which statements describe sustainable development? multiple answer choice -fishing does not remove more fish from water systems than can be replaced by the number of fish that will be born to replace them. -sustainable development is development that is designed to improve the economic conditions in less-developed countries. -sustainable development is mainly a regional issue. -sustainable development means water is used at a rate that won't reduce the amount available for future use. - sustainable development policies only need to be concerned with environmental protection. - trees cannot be cut down faster than the number that will be replaced by new growth.

The creation of the european union has had all of the following effects except