Answer:

Step-by-step explanation:
The original board is 40 1/8 inch and it is cut in 3 pieces of equal length:
New boards = 
And now he cuts again 3 3/4 inches off of each one of the new boards (substracts)

Answer:
I think its 68(pi)
Step-by-step explanation:
u must get first the slant height then get the SA of the cone and get the SA of the cylinder and add them but don't forget to subtract a base from ur final answer
Answer:
well if you add both equations it will all eliminate to 0 = -1
what is inconsistant cause there is no solution cause the statment 0 is equal to -1 is false
Step-by-step explanation:
2x + -2x = 0
-y + y = 0
-4 + 3 = -1
She has 50 stacks with 10 pennies in each, so multiply 50 by 10
50*10 = 500
so she has 500 pennies in total.
Nothing is here I need a question sorry