SE NÃO ME ENGANO A RESPOSTA É A 10
The answer is 16 days because 30/ 1.85 = 16 days
To answer b - You need to find how much it costs to rent a bike per hour. To do this divide the over all cost ($12) by your amount of time (3 hrs) to get $4 per hour. Same with the $20 per 5 hours!
.10 is the answer because it says in a scale so that tells you it's going to be a decimal