Answer:
Step-by-step explanation:

There are 3 odd primes, namely : 3, 5, 7
The total amount of blocks is 9
The odds of picking and odd prime is 
Answer:
19 BUT BACK IN 2015 OR 2011 IR 2013 ITS TO BE 21 AS A JOKE IT USED TO BE VERY FUNNY LIKE WANT 9 PLUS 10 21 HAHAHAHAHAHAHAHAHA
Step-by-step explanation:
That's the uniion of sets B and C
that means inclde all the values of both sets (not meaning the ones common to both sets)
so that would include a,b,c,d, 0,a,2,b
a and b repeat so list them only once
that would be {a,b,c,d,0,2}
answer is 4th option
By direct division, we will find that the length of each piece of rope is 10.5m
<h3>
How to perform the division?</h3>
So e start with a 42 meter long rope and we cut it into 4 equal parts, then we know that each one of these pieces will have a length equal to:
L = (42m/4)
To perform that division, you can see that 42<u> is not a multiple of 4</u>, so we can write:
L = (40m + 2m)/4 = (40m/4) + (2m/4)
The first quotient is just equal to 10m, while the second one is:
(2m/4) = (1m/2) = 0.5m
Then we have:
L = (40m/4) + (2m/4) = 10m + 0.5m = 10.5m
Each piece of rope has a length of 10.5m
If you want to learn more about divisions, you can read:
brainly.com/question/7068223