Answer:
Part a) 920 rods
Part b) 2,530 fathoms
Explanation:
we have that
The Kentucky Derby distance is 23 furlongs
Part a) How far is the Kentucky Derby in rods?
Remember that

so
To convert furlongs to rods multiply by 40

Part b) How far is the Kentucky Derby in fathoms?
Remember that

so
To convert furlongs to fathoms multiply by 110
