Answer:
45/58 it is already in simplest form
Step-by-step explanation:
Answer:
28, 29, and 30
Step-by-step explanation:
There's probably better ways but you can estimate by knowing 30*3=90 so it should be somewhere pretty close to 30. Guess and check with basic calculations to get 28, 29, and 30.
Answer:
she used square unit instead of cubic units
in calculating the volume of the pyramid she didn't multiply by 1/3
she subtracted the pyramid volume instead of adding it
