Iunderstand the equation, it's just not working out. can anyone me figure it out? in advance.

You are designing a rectangular pet pen for your new baby puppy. you have 30 feet of fencing you would like the fencing to be 6 1/3 feet longer than the width

There are 45 questions on your math exam. you answered 810 of them correctly. how many questions did you answer correctly?

Three runners competed in a race data were collected at each mile mark for each runner if the runner ran at a constant pace the data would be linear