2=7+b/4 what's the steps were suppose to do can someone step me through

Which of the fallowing best completes the sequence 12,8,5, a) 1 b) 2 c)4 d)0

Write the rational number in lowest terms 99/-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