Answer:
$
Step-by-step explanation:
Let 
the cost of one brownie, 
cost of one cookie
Times 
on both sides on the second equation above to get the following:
To find the value of 
, use substitution:
the cost of a brownie is $
Hope this helps :)
A reasonable estimate would be 3 feet
Answer:
Step-by-step explanation:
To find the surface area of a regular pyramid use the formula:
S = 1/2 × l × p + b
Surface = 1/2 × lateral height × perimeter of the base + area of the base
The correct answer is letter B, (6,-1).
When you substitute this ordered pair on the equations, you would found out is the correct one.
