2to the 20th power in scientific notation

—the graph shows how fast a strand of human hair grows. how many inches would the hair have grown in 5 months

What expression is equivalent to log3(x+4)

Fred has a spinner that is split into four equal sections: red, blue, green, and yellow. fred spun the spinner 688 times. which of the following would be a good estimate of the number of times the spinner lands on the green section? a. 269 b. 603 c. 344 d. 189