Yes it is a natural number
The cross-section of a square pyramid will be a square. The section above the cross-section taken will basically be a similar but smaller square pyramid. D is the correct answer.
First, add in the parentheses. a+3a=4a. Then, make subtraction into adding negatives. (-c)+5c +(-3a)+4a. It becomes 4c+a.
Answer:
3:4?
Step-by-step explanation:
If you fill in the blank for c and d it show 3:4. Sorry if this doesn’t help, I don’t fully understand the question