What is the value of (-1/4 - 1/2) divided by (-4/7) ?

options

a). -1 5/16
b). -3/7
c). 3/7
d). 1 5/16

Which of these people has balanced their checkbook correctly? oa. gary: the balance in his check register is $500 and the balance in his bank statement is $500. b. gail: the balance in her check register is $400 and the balance in her bank statement is $500. c. gavin: the balance in his check register is $500 and the balance in his bank statement is $510.

Standard deviation of 19,29,21,22,23

If the value of cos330°is√3/2 then find cos 165°.