Answer:
Your work is correct as far as it goes. Now eliminate the terms that are zero.
Step-by-step explanation:
Multiplying anything by zero gives zero. Adding zero is like adding nothing. Zero is called the "additive identity element" because ...
a + 0 = a
Adding zero doesn't change anything. You can (and should) drop the zero if your goal is to simplify the expression.

Answer:
A. 5
B. 6
I hope this is helpful for you! Unless my calculator is wrong!
Answer:
9.86, go buy a calculator.
Step-by-step explanation:
Go to store.
Buy calculator.
9.86
Answer: 6weeks
Step-by-step explanation:
If it takes 4 men, 9 weeks to build a barn.
It will take a man; 4 x 9weeks =36 weeks to make a barn
If it takes a man 36weeks to make a barn, it will take 4men + 2 men i.e 6men = 36/6
6 weeks to make a barn
You should aske them together in 1 quesiton (I am assuming the scale had 5 pounds before)
so 5-2=3 pounds
to ounces=3 times 16 since 16 oz pper ppound
3 times 16=48 oz