One solution of x^2 - 64 = 0 is 8. what is the other solution​

What is the volume of the sphere shown below with a radius of 3?

What are “like terms”? why can we only add like terms?

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