Answer:
4 Lawns
Step-by-step explanation:
Tim need to mow four lawns.
145 - 65 = 80
80 / 20 = 4
2×5^{2} if you don't understand its 2 times 5 to the second power.
6xyz(3x+2y+z...................
22 5/8 ÷ 2 2/3 = 8.484375
So it can make 8.484375 pieces of ribbon
If he starts at 8:00 AM and you start counting up by 1 hour at a time...
8:00 - 9:00 = 1 hour
9:00 - 10:00 = 1 hour
10:00 - 11:00 = 1 hour
11:00 - 12:00 = 1 hour
So far that is 4 hours that have passed and we are up to 12:00. Now remember, when we reach 12:00 we switch from AM to PM (that's 12 noon).
We only have 49 minutes left so now we just add that in
12:49 PM is when he crossed the finish line.