HELP FAST SECOND TIME POSTING❗️❗️❗️❗️The points (-1, r) and (5, -5) lie on a line with slope - 3. Find the missing coordinate r.

Bob’s bank charges him a $3.15 service fee every time he uses an out-of-network atm. if bob uses an out-of-network atm an average of three times every two weeks, how much will he pay in service fees over the course of a year? a. $327.60 b. $109.20 c. $491.40 d. $245.70 select the best answer from the choices provided a b c d

On a string instrument, the length of a string varies inversely as the frequency of its vibrations. an 11-inch string has a frequency of 400 cylces per second. find the frequency of a 10-icnch string.

Solve this system of equations. 12x − 18y = 27 4x − 6y = 10