Jose ran twice as many kilometers as karen. adding 8 to the number of kilometers jose ran an dividing by 4 gives the number of kilometers maria ran. maria ran 3 kilometers. how many kilometers did karen run?

You paid 28.00 for 8 gallons of gasoline. how much would you pay for 15 gallons of gasoline?

The volume of a sphere is increased by 6%. calculate the corresponding percentage increased in it area.

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?