Question

how many numbers less than 8000 can be made using 6,7,8 and 9

Answer 1

can u show work by drawing please

Answer 2

you may use repested digits

Answer 3

For the first digit you can only choose a 6 or a 7, so 2 choices.
Second digit can be 6,7,8 or 9, so 4 choices.
4 choices for the third digit.
4 choices for the 4th digit.

So 2*4*4*4= 128

So there are 128 numbers less than 8000 that can be make with only the digits 6, 7, 8, and 9.

Answer 4

how do u know if the first one has to be a 6 or 7?

Answer 5

oh and can u answer another question for me also?

Answer 6

You need a number less than 8000. So if the first digit was an 8, the number would be bigger.