1. 6(3-8)-10
=6(-5)-10
=-30-10
=-40
2.30(3)+15(10)
=90+150
=240
3. 2(3)(3+32+32)
=6(67)
=402
Answer:
3400
Step-by-step explanation:
if you add it all up in cm, which is 340cm then divide by 10 you get 3400.
