A park volunteer plans to work on the park's stone walls for 1 hour every Monday, 1 hour every Wednesday, and on Fridays. The graph shows the number of hours he plans to work for a given number of weeks. The constant of proportionality of the line is .
The slope of the line is
How many hours will the volunteer work in 16 weeks?
The volunteer will work
hours. (Type a whole number.)

Acable company wants to provide cell phone service for residents on an island. the function for the cost of laying the cable from the island to the mainland is c(x)= 6.500 square root x2+4, where x represents the length of the cable in feet. what are the domain and range of the function? a) domain: all real numbers range: all real numbers greater than or equal to 17,000 b) domain: all real numbers greater than or equal to 0 range: all real numbers greater than or equal to 17,000 c) domain: all real numbers greater than or equal to 0 range: all real numbers greater than or equal to 13,000 d) domain: all real numbers greater than or equal to 13,000 range: all real numbers greater than or equal to 0

Simplify.7x + 3y - 2 + 6x + 1 + y squared 2 you! ; )

Write an inequality and solve each problem. for exercises 11 and 12, interpret the solution.