Will mark brainliest! there are twice as many students in the math club as in the telescope club. suppose there are x students in the telescope club and y students who are members of both clubs. find an expression for the total number of students who are in the math club or the telescope club but not both. give your answer in simplest form.

Elena and her husband marc both drive to work. elena's car has a current mileage (total distance driven) of 15,000 and she drives 23,000 miles more each year. marc's car has a current mileage of 46,000 and he drives 9,000 miles more each year. will the mileages for the two cars ever be equal? explain.

What is the solution set for z+10=z-2

At the county fair, animals are judged for the quality of their breeding and health. the animal pens are arranged in an array, with one animal in each pen. a barn can hold at most 10 rows of pens and at most 6 pens in each row, with room for people to walk around them. what different ways can the planners of the county fair arrange the pens for the horses and cows in the same barn?