Selma rented a car for $29 per day plus a one time charge of $14 for insurance. if d represents the number of days for which the car is rented which equation represents the total cost c of the rental

Answer: 14 + (d*29) = c

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.