Answer:
The difference of 7 and what? If it means that 3 is multiplied by the difference between 7 and 3, then the result would be 3 x (7-3) = 12.
C. sounds like the most reasonable answer to the question.<span />
Answer:

Step-by-step explanation:
The triangle is a right triangle.
We can use trigonometric functions to solve.





Answer:
What does the pyramid look like
Step-by-step explanation: