What is the decimal equivalent for 7/8?

PLZZZ HURRY ITS URGENT!!!

Given that ot =5, xt=12, and ox= 13 is xy tangent to circle o at t? explain.

David is spreading mulch on a triangular area of his flower bed. the coordinates of the vertices of the area are (1, 3), (9, 3), and (4, 6). what is the area of the triangle if each square has an area of 3 square feet?

The volume of a sphere is increased by 6%. calculate the corresponding percentage increased in it area.