Question

HELP DUE TOMORROW

Doing this question again as my teacher needs more descriptive answers!

Please put an explanation for all parts and answers to all a, b, c and d.

Thanks!
Questions in pictures

Answer 1

Explanation:

I really can't see the picture

Answer 2

dropdown numbers are where none of the digits are the same. the one of the digits is equal to the average of all the digits. 1025 is the smallest 4 digit drop down number