Answer. i really appreciate any efforts. show work if possible (not required) : ) 1) how many integers are a. between 9 and 100, including 9 and 100? b. between 199 and 299, including 199 and 299? c. between m and n, including m and n? d. between m and n, not including m and n? 2) how many 4-digit multiples of 5 are there? 3) how many 4-digit numbers cannot be divided by 5? 3) how many 4-digit multiples of 2 are there? 4) how many 4-digit numbers are multiples of both 2 and 5? 5) how many 4-digit numbers are multiples of at least one of these two numbers: 2, 5. 6) how many 4-digit numbers are neither multiples of 2 nor multiples of 5?