A rectangle has base length x + 7, altitude length x + 4, and diagonals of length 3x each. What are the lengths of its base, altitude, and diagonals?

Can someone answer this question? : )

Apool measures 100 meters by 100 meters a toddler inside the pool and trows a ball 60 centimeters from one edge of the pool.how far is the ball from the opposite edge of the pool

Paul can type 60 words per minute and jennifer can type 80 words per minutes.how does paul's typing speed compare to jennifer's