Please help me

The equation of a parabola is given. y=18x2+4x+20 what are the coordinates of the focus of the parabola?

When a 757 passenger jet begins its descent to the ronald reagan national airport in washington, d.c., it is 3900 feet from the ground. its angle of descent is 6 degrees. how far must the plane fly to reach the run way? a. 37,106 ft b. 37,310.4 ft c. 23,456.6 ft d 2,492.7 ft

If (-3, y) lies on the graph of y = 3^x, then y =