It takes 8 hours to clean 12 houses so that’s 8/12 to find how many hours it take to clean one house, 8/12 is equal 2/3 . So it takes 2/3 of an hour to clean one house. 2/3 times 12 equals 8. So you want to find how many houses you can clean in 12 hours. The equation is 12= 2/3x , x=18. The answer is 18 houses. Check the work cus I sure didn’t lol, hope this helps
Answer: The dividend is divided by the divisor to get the result which is the quotient.
The quickest way to get the series is if you already know the series for sine:
Then just multiply the series by 
to get
The first four nonzero terms are simply the first four terms:
