Answer:
-25
Step-by-step explanation:
Answer ⟶
+ 12 - 4 + 3 - 15
= 12 + 3 - 4 - 15
= 15 - 19
= - 4
5ft
perimeter=l+l+w+w
l=12
p=24+2w
34-24=10
10/2=5