Answer:
×
Step-by-step explanation:
×
as scientific notation is equal to
×
Answer:

Step-by-step explanation:
Find the area of the 2 triangle faces and the 3 rectangle faces, then add the areas together to get the total surface area of the triangular prism.


90^2+120^2=c^2
180+240=c^2
420=c^2
2 radical 105
It would be 20,000,000 or 20 million. So B