Discover Questions

Is Space time real or is it just an illusion? Find the Left Riemann Sum that approximates the area under the curve of y=e^(4x) on the interval [0,2] with 8 rectangles.? How often are rain forecasts at least 6 or 7 days in advance ever correct? What is 7/20 divided by 5/6 I need to reduce my problem to the lowest amount? Is it possible our universe is the creation of a black hole in another universe and the big bang was a white hole?