Y/x=k
when y=9, then x= -3
9/-3=-3
⇒ k= -3
Hello!
You have to find the area of the prism and the pyramid
rectangular prism is lwh
Put in the values you know
15 * 5 * 7 = 525
For a prism you use

Put in the values you know

Multiply
975/3
Divide
325
Add the values you know
325 + 525 = 850
The answer is D)

Hope this helps!
0.0006 would be your answer based on the order you put them in.
240 is the missing term in the pair of equivalent ratio