Which of the expressions are equivalent to the one below? (15•3)-20 a. (3-20)•(15-20) b. (3•15)-20 c. 6•(15-20) d. 20-(3•15)

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

This graph shows which inequality? a ≤ –3 a > –3 a ≥ –3 a < –3

The line plot below represents the number of letters written to overseas pen pals by the students at the waverly middle school. each x represents 10 students. how many students wrote more than 6 and fewer than 20 letters. a.250 b.240 c.230 d.220