Find the volume of the pyramid.

Volume = 80 in³

Step-by-step explanation:

The formula for volume of a pyramid is;

v=(A*h)/3

where

A=Area of triangular base

h=height of pyramid

Finding area of triangular base;

A=1/2*b*h

A=1/2*10*6=30 in²

Finding the volume

v=(A*h)/3

v=(30*8)/3=80 in³

step-by-step explanation: a reaction is first order. if the initial reactant concentration is 0.0200 m, and 25.0 days later the concentration is 6.25 x 10-4 m, then its half-life is: