Find the y-axis of symmetry for this parabola y=-x^2+2x-7

Miguel bought a movie ticket that cost $5. he also bought popcorn and a bottle of water. how much did miguel spend altogether?

An objects motion is described by the equation d= 4sin (pi t) what will the height of the object be at 1.75 seconds?

10 ! a train starts from grand city and travels toward belleville 388 miles away. at the same time, a train starts from belleville and runs at the rate of 47 miles per hour toward grand city. they pass each other 4 hours later. find the rate of the train from grand city.