(Please answer) Octavia is going to buy milkshakes for her friends. Small milkshakes cost $2.50 and large milkshakes cost $6.00. She needs to buy at least 20 milkshakes and she can spend no more than $90. How many small milkshakes Octavia should buy to serve her friends but stay on budget?
Octavia should buy less than 8 milkshakes.


Octavia should buy at least 8 small milkshakes.


Octavia should buy less than 12 milkshakes.


Octavia should buy at least 12 small milkshakes.