50 points

what is the volume of this?

1468 is the answer.
You have to find the volume of the large shape and subtract the volume of the small shape. Write the equation as such:
(10*10*15) -(2*4*4)
1500 -32
1468

15,000 would be the whole cube, if you fill in the part where is missing. But the answer is 1468. 

Happy spring break!! (Well, at least for me c:)

The question is kind of confusing. if it's asking how many variations of answers can you give. then do 4^5 for your answer.this would be something like the first question could be a and the 2nd c or first b next c etc. if you can, ask the teacher for a better confirmation of what it's asking. if i'm assuming correctly what it's asking, it's 625 different variations.

(x) - (y) = (1 + 4i)

(3 + 6i) - (2 + 2i) = (1 + 4i)