False for every rate there is only one unit rate. there is however more than 1 rates for one unit rate. for example 4/2 would have 2/1 as a unit rate but 2/1 can have 4/2 and 8/4 as rates and so on. hope this helps good luck!
Answer:a
Step-by-step explanation:
The answer is 24 this needs to be longer so it will send
20% chance for the letter box and 25% chance for Number box.
