If you do the math you get 13.95 meaning the nearest whole number would be 14
Answer: 2^-10
Do you need an explanation?
Answer:
The number of machines to complete job in 2 hours is 6.
Step-by-step explanation:
Using the relation of the rate of each one machine and knowing that adding up both rates.

Rate R =
'x' is the job
Rate S =
'x' is the job
So, using the equation of rates

Rate total is going to be a job in 2 hours so = 
<em>adding up</em>
<em>factoring the x</em>
<em>simplifying</em>
x= 
x= 6
What is the series you are referring too?
There are 129 tens because 43x30 (3 tens) is 1,290