Answer: i - 60

the two fives are supposed to be up y but i dont know how to put them
Step-by-step explanation:
Answer:
72 I think
Step-by-step explanation:
I'm not 100% sure but I think its 72
I think its 13
bcz I just added them all up and got the answer 13
Answer:
The plane PRS passes through the points P, R and S. So it contains the line RS. Also the plane QRS passes through the points Q, R and S. So it contains the line RS as well. Since both the planes contain the line RS, the line RS must be the intersection of plane PRS and QRS
Step-by-step explanation: