Question

9. The Bedrock water department has a monthly service charge of $11.90 and a volume charge of $1.61 for every 100 cubic feet of water. Which of the following equations can be used to determine the Sandstone family's monthly water bill?

(Let x represent 100 cubic feet of water and y represent the monthly cost.)
y = 1.61x - 11.90
y = 13.51x
y = 0.0161x + 11.90
y = 1.61x + 11.90

Answer 1

y = 1.61x + 11.90

Answer 2

thanks