Last question a solid is composed of squares and equilateral triangles. its net is shown below: the area of each triangle is 21 square units. the surface area of the triangular prism is square units. (input whole number onl

The surface area consists of three squares and two triangles.

The squares have side length of , so their area is .

The area of each triangle is (this is given).

So, the total area is

units squared

Let x = the cost of the calf.  The cow costs 8 times as much, so it costs 8x.  Together they cost $990:

   x + 8x = $990

Step-by-step explanation: