Complete the sentence.

Twenty percent of 150 is .?

In trapezoid bath, ah=19.7 and et=16.1. identify be.

Which expression is equivalent to sq-80

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.