Answer:
145 yards squared
Step-by-step explanation:
So the area of the base is area of a square with side length of 5 yards 
The area of one triangular face base times height divided by two and then simply multiplied by 4 because there are 4 triangular faces.

So the total surface area is
yards squared
Answer:
density, mass of a unit volume of a material substance. The formula for density is d = M/V, where d is density, M is mass, and V is volume. Density is commonly expressed in units of grams per cubic centimetre.
Step-by-step explanation:
I’m having a hard time understanding your question
Answer:
A,B ,C are not collinear so false
Answer:
the slope of 15 is more difficult to run on
Step-by-step explanation:
The larger the slope, the steeper the ramp. A slope of zero is a horizontal line, which would be relatively easy to run on. A slope of undefined is a wall, which we cannot run on (we would fall off). The larger the number, the steeper it gets