# math

posted by
**jeff** on
.

How many 4-digit numbers can be formed using the numbers 5, 6, 7 and 8? How many of the 4-digit numbers are less than 7000?

posted by
**jeff** on
.

How many 4-digit numbers can be formed using the numbers 5, 6, 7 and 8? How many of the 4-digit numbers are less than 7000?