Answer:

Step-by-step explanation:

If you're rounding to the nearest 100th the total would be 100. 422 would round to 300 and 284 would be rounded to 300 which equals 100.
Hope this helps it shows the work meaning she paid $205
Given:
A figure that contains a right triangular prism and cuboid.
To find:
The volume of the figure.
Solution:
The dimensions of cuboid are 16 in, 7 in and 3 in.
So, the volume of the cuboid is:



The base of the prism is a right angle with base 3 in and height 5 in, and the length of the prism is 6 in. So, the base are of the prism is



The volume of a prism is:

Where, B is the base area and h is the height of the prism.


The volume of combined figure is:



Therefore, the volume of the figure is 381 cubic in.
It depends if it is negative that's being timesed by 2 more negatives because then that would make it negative but if it's positive times a negatives times a negative then it would be positive and no matter what a positive times any positives and no negatives that will be positive. Hope this helped! :)