Calls from a call box are charged per minute at one rate for the five minutes, then a different rate for each additional minute. if a 7 minute call costs $4.25 and a 12 minute call costs $5.50, find each rate.

The first one, i believe, would be correct. all the others have one thing in common, and that's that they have repeating numbers. in the second one, x and y have repeating 6's and 3's, and in the third, x and y have repeating 6's as well. in the last one, there are repeating 3's. the first one has no repeating numbers.

Y=-2x-6 is the answer

The answer is 1532.75