Six less than twice a number is 4

There were 25 students who answered to a survey about sports. four-fifths of them like football. how many students like football?

Ahmed plans to add a rectangular sunroom to his house. the sunroom will have a length of 14 feet and a width of 10 feet, and the construction will cost $40 per square foot. how much more would the sunroom cost if it’s width were increased to 12 feet?

Circle o has a circumference of approximately 44in what is the approximate length of the diameter d