Max and maggie have to clean the house. it takes max 12 hours to clean the house, while maggie can complete the task in 4 hours. their sister says that it will take 3 hours to complete if they work together. explain each step in solving this equation, and determine if the sister is correct or not.

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

How many lines can be drawn through points j and k? 0 1 2 3

Is the square root of 4 plus the square root of 16 rational?