Find the sample size required for a margin of error 2.4 percentage points, and then find one for a margin of error of 1.2 percentage points.. see pic

Find three consecutive numbers such that the sum of one-fourth the first and one-fifth the second is five less than one-seventh the third

Which of the following describes the symmetry of the graph of y = x3?

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