Evaluate 4(x+5)(x+1) over (x+3)(x-3) for x=5

Aformual for 8 bottles of window cleaner calls for 6 cups of rubbing to customers alcohol 2 1/4 gallons of water and 1 1/2 cups of ammonia alcohol would the forula call if a factory made 1,280 bottles for stores to sell to customers

What is the solution of the systems of equations? y=2/3x+3 x=-2

Which is the focus of a parabola with equation y2=4x