Given that the sun is estimated to be about five billion years old, scientists estimate that we are about halfway through its lifetime. this means that the sun’s lifetime is expected to be what length of time?
1. 10 billion years
2. 5 billion years
3. 20 billion years
4. 5 billion years

In the diagram below dab and dac are adjacent angles

Find the equation of the line passing through the point (–1, 5) and perpendicular to the line 3x + y = 4.

How have ethnic groups shaped the population in central america and the caribbean? how has migration shaped the population in central america and the caribbean? how has small land areas shaped population in central america and the caribbean? how has a rapid population growth shaped the population in central america and the caribbean?