Proper because improper would be 6 over 5 and mixes would be 1 and 1 over 6
In order to isolate k, we would first cross multiply
3*k=9*10
3k=90
Then to isolate k, we would divide both sides by 3 to get:
K=30
Hope this helps
Because a rectangular pyramid's base is square, the cross section would be as well
This system of equations is consistent and independent, because there is only one solution. the answer is C
