Which of the following best describes a tectonic plate? A. Underground tunnels for water to travel.
B. Fragments of the Earth's crust that float on the Earth's mantle.
C. Areas in the mantle that flow.
D. Mounds of volcanic lava that form cone shaped features on the Earth's surface.

B

Step-by-step explanation:  Plates at our planet's surface move because of the intense heat in the Earth's core that causes molten rock in the mantle layer to move. It moves in a pattern called a convection cell that forms when warm material rises, cools, and eventually sink down. As the cooled material sinks down, it is warmed and rises again.

answer: plz put a pic in so i can answer it

step-by-step explanation:

x = 17

step-by-step explanation:

1st step: isolate x.

24 - 3x = -27

-24         -24

-3x   =   -51

2nd step: divide.

-3x     =   -51

  3             3

  x       =     17

hope this