0.6892 round to the specified place value of hundredths

Solve for x, y, and z. show all steps.

Write two subtraction equations that are equivalent to 5 + 12 = 17.

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.