Answer: The top of the ladder is moving down at a rate of 0.303 feet / second
Step-by-step explanation: Please see the attachments below
The answer to this question is c = -2

For the statement to be true, 'a' and 'b' must be equal
*First expand the binomial using FOIL, then set it equal to whats given "2abi".
Then you can find the relationship between a and b.