Greta's Gas Company charges residential customers $9 per

Last updated: 7/17/2022

Greta's Gas Company charges residential customers $9 per month even if they use no gas, plus 64¢ per therm used. (A therm is a quantity of gas.) In addition, the company is authorized to add a rate adjustment, or surcharge, per therm. The total cost of using g therms of gas in a month is given by (a) Which term represents the rate adjustment? What is the rate adjustment in cents per therm? cents per therm (b) Is the expression for the total cost linear? Total cost = 9+0.64g + 0.149g.