Answer:
You spilt up the shapes into triangles, rectangles, squares, etc
The equation for rectangles and squares is
A=l•w
(Area equals length times width)
The equation for triangles is
A=(1/2)b•h
(Area equals one half times bass times height)
Answer is 13 yards of ribbon
Step by step
She started out with $25
She had a remainder of $22.14
Subtract
25 - 22.14 = $2.86 she spent on ribbon
Divide $2.86 by .22 per yard = 13 yards
Problem solved
Answer:
12.6cm
Step-by-step explanation:

so let's notice, the volume of the rectangular prism is really 3 times as much of that of a pyramid with the same Base and Height.
so if the pyramid has a volume of 150, the prism will have volume of 3*150.