Scientists study many lines of evidence to estimate the age of the earth, including rocks, fossils, other objects in the solar system, and the half-lives of radioactive elements.
based on all of this information, scientists estimate the age of the earth to be years.
a. 4.54 billion
b. 454,000
c. 45,400

How do we use the sumif formula (when dealing with different formats) ?

What part of the interface displays the external references contained in a selected cell? the status bar the review tab the scroll bar the formula bar

You will subnet the network address 172.31.103.0/24. the network has the following requirements: · room-114 lan will require 27 host ip addresses · room-279 lan will require 25 host ip addresses · room-312 lan will require 14 host ip addresses · room-407 lan will require 8 host ip addresses how many subnets are needed in the network topology?