There is no specific name.
And it is not "duodecimal" since the number 12 is not a duodecimal "digit".
a band/group if its more that 2
transition metals
you add all of the numbers in the group together and then divide the number you get by how many numbers are in the group EX: your group is 21, 32, 12, 15. you add 21+32+12+15= 80. then you divide 80 by 4 because you have four numbers in your group. so your mean is 20!
The GCF of the given numbers is 12
transition metals
Because this question is in the "Australia" section, it will be addressed as such. The 12 Apostles are a rock formation in the sea off the southern coast of Victoria. There are not twelve, but because they are in a scattered group, they were assigned a name that designated them as a common group, just as Jesus's apostles, or disciples, were a group "cut from the rock", so to speak. Apart from this, there is no particular reason for why they were given this name.
since a=5 you can put that into your equation of a+7=12 a=5 a+7=12 5+7=12 12=12 Correct So yes the given number is a solution to the given equation
There is no single answer to that. You could come up with many sets of numbers that would have those properties.
The HCF of the given numbers is 1
The LCM of the given numbers is 12
The LCM of the given three numbers is 96
The LCM of the given three numbers is 12