If the circumference of a circle is doubled, the diameter of the circle
a) remains the same
b) increases by 2
c) is multiplied by 4
d) is doubled

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