can someone help me on this and tell me how to do this?plz

Answer:
p or perimeter equals 2(a+b) so 15 + 10 is 25 and 25 times 2 is 50 so the answer is 50 inches.
Explanation:
Answer:
50
Explanation:
add the 4 sides of the rectangle. 10 ×2= 20, 15 + 15 = 30. Then add both of them together. 20 + 30 = 50