Can someone pls answer ive posted this 4 times and no one responded :/

Answer:
13)1/10
14)There is no x please ask to correct the question
15)(P - 2S)/2=L
Answer:
13)1/10
14)There is no x please ask to correct the question
15)(P - 2S)/2=L
Step-by-step explanation: the person above me is correct