Actuary, statistician, mathematician, financial analyst, econonmist, data science, meterorologist, geographer, and etc.
Explanation:
Mathematical knowledge is very important in STEM jobs. They need math to treat patients, understand medical test, and operate medical equiptment.
The sentence is not grammatically correct, it should be, "Last summer, Jim mowed one lawn, now he mows three." Mowed just one lawn doesn't make sense in one sentence.
An unabridged dictionary of English language attempts to cover all the words and gives information. I hope I helped you...
