you use long division (there are tutorials on YouTube on how to do long division) or put the answers in a calculator.
15) 268
16) 94.1
17) 209
18) 246.8
19) 86.1
20) 908
21) 587
22) 1494.6
23) Emilio will have 67 rows of trees to plant. If you divide 8,740 by 125 you get 67.6 which is just 67 in rows.
