If the sixth term of a sequence is 128 and the common ratio is 2, then what is the first term?

According to modern science, earth is about 4.5 billion years old and written human history extends back about 10,000 years. suppose the entire history of earth is represented with a 10-meter-long timeline, with the birth of earth on one end and today at the other end.

If the perimeter of the garden is 37 ft. the width is x and the length is 15 ft. what is the width of the garden in feet?

Solve 4 ln x=2ln25 a) x=5 b) x=25 c) x=625