It's closed under addition. You can take any two natural numbers you want, add them up and you'll get some other natural number (eg: 3 and 5 ---> 3+5 = 8)
it's not closed under subtraction. Sure 5-3 = 2 is a natural number but 3-5 = -2 is not a natural number
so that leads us to the answer being choice B
Answer:
l=p/2-w
Step-by-step explanation:
185.4m (rounded to 1dp)
Circumference of a circle is the diameter times by pi. 59×pi=185.4
Given:
There is an equation given as

fits the scatterplot of the values for stock ABC over the past month with an r-value of 0.9874.
Required:
We need to find that what will be worth at x= 32 days?
Explanation:
The equation fits the scatter plot of the values for stock ABC over past month with r-value of 0.9874 is

to find ABC will be worth at x=32 just substitute x=32 in the given equation

Final answer:
Therefore, $2107.19 ABC will be worth at x=32 days
we need to multiply : 1/5*3/4 multiply 1 by 3 on the tops so we have 3/5*4 5*4=3/20