coefficients: the factors of the terms (i.e. the numbers in front of the letters) in a mathematical expression or equation, e.g. in the expression 4x + 5y2 + 3z, the coefficients for x, y2 and z are 4, 5 and 3 respectively.
1 Pet sitting costs $10-$65 per day, depending on the location, length of the visit and number of sitter's duties. 2  A 15-minute visit, during which the sitter would refill food bowls and tend to the pets' bathroom needs, costs $10-$18.
CostHelper.com says pet sitters may charge $5 to $10 more per pill if the pet requires medication. â¢ Overnight stays. An overnight stay requires more hours of the pet sitter's time, so they charge more accordingly.