Answer: x (x - 1)
Step-by-step explanation:


x (x - 1)
Well, for 20 you just add them, to get

. For 21, you do a substraction:

. It'd take him quite some time (does this one even have zeros? :)) )
14.603 rounded to the nearest whole number is 15.
Find the ones place (4). Look at the number next to the ones place. It is a 6. Because 6 is greater than 5, round up
15 is your answer
hope this helps
Answer:
2/3
Step-by-step explanation: