Sean has 1/5 cupcake and 1/5 large cake. are the wholes the same?

[15 points, algebra 2]simplify the complex fraction and find the restrictions.

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

Prove sin2a + cos2a - 1 / sin2a + cos2a + 1 = 1 - tana / 1 + cota