Help please! I do not understand my math at all and don’t even know what this is asking! Can you please show steps as well! This module is on solving rational functions.

Tod does not have any cookies. david gives jeff 8 cookies. then he splits half of the cookies he has left with tod. david let’s c represent the number of cookies that he starts with. he finds the number of cookies that tod has is 1/2 the difference of c and 8. write an expression to represent the number of cookies that tod has.

For what value of (y) is 3^3/3^y =1/9

Cody was 165cm tall on the first day of school this year, which was 10% taller than he was on the first day of school last year.