the scale of the enlarged map will be 180 i really didnt know how to do this at first so im sorry if im wrong and if i confuse you more o~o
Answer:
About three weeks.
Step-by-step explanation:
147 divided by 4.50 = 32.6
32.6 divided by 11 is almost 3. So about three weeks.
Try this option (see the attacthed file; answer is marked with red colour); note, that

answer: 2 m/h.
12x-7
hope it helps.Thanking you