You have to explain how you knew to use 55 and 120, not another option.
Hope it helped! :)
Answer:
The correct answer is 135
Step-by-step explanation:
This is because her rate is 15 flowers per 5 minutes, and there is 45 minutes. Therefore, 5 minutes occurs 9 times in 45 minutes and fifteen flowers times 9 groups of five minutes is 135.
The answer would be a. 9/10 after simplifying 18/20 which is what you get after getting your common denominator.