A rectangular pyramid has base edges of lengths 8 and 14 and height of 10, what is the volume of the pyramid to the nearest tenth?

Negative 5 1/12 + negative 4 1/4 + 6 3/4

Find the perimeter of the triangle with vertices  d(3, 4),  e(8, 7), and  f(5, 9). do not round before calculating the perimeter. after calculating the perimeter, round your answer to the nearest tenth.  

Look at triangle wxy what is the length (in centimeters) of the side wy of the triangle?