Answer:
142.
Step-by-step explanation:
=12×71/3×2
=852/6
=142
no he will make it home at 18:15
Answer:3.06
See below
1. 12
2. 15 [3*12-21 = 15]
3. 24 [3*15-21 = 24]
4. 51 [3*24 - 21 = 51]