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How many 3-digit numbers can be made using the digits 4 6 7 9?
If the digits may be repeated, there are four choices for the first digit, four choices for the second, and four choices for the third. Thus there are 4x4x4 = 64 possible three-digit numbers with those digits. If the digits may not be repeated, there are still four choices for the first digit, but then only three remaining choices for the second, and then just two choices for the third. In this case there are only 4x3x2 = 24 possibilities.
Why is algebra so easy?
Because that's only the tip of the iceberg. Don't worry you'll get to math where you won't be asking that I promise.
What is -5 subtracted by 3?
-8
How many ways is there to seat six guest at a table for 6?
The first person has a choice of 6 seats, the second one has only 5 choices, the third one 4 choices, the fourth one 3 choices, the fifth one 2 choices a, and the sixth person has to take the one seat that is left. So the answer is 6! or 6x5x4x3x2x1 = 720 ways.
How do you find the area of a square with only the perimeter?
its easy really!! All you have to do is divide the perimeter by 4 (because a square has four sides!) once you got that answer you then times that by its self and you have the area!! :)
