5+5 x 2+2+2+2+8+6+0+9+7+6+5+4+4+6+7+8

your answer is 91

Step-by-step explanation:

780

Step-by-step explanation:

5+5 x 2+2+2+2+8+6+0+9+7+6+5+4+4+6+7+8

10*78

780

your answer is 228

step-by-step explanation:

add the top and bottom bases together, then divide them by 2, then multiply by the height.

i'm assuming that it's c.)   volcanoes built the mountains and earthquakes tore them down.