JKM = M + L
15x - 48 = 40 + 5x + 12
10x - 48 = 52
10x = 100
x = 10
JKM = 15(10) - 48 = 102
180 = JKM + MKL
180 = 102 + MKL
MKL = 180 - 102 = 78
Answer:

Step-by-step explanation:
(square prism)
(cylinder)
(
cylinder)
9/10 is the answer. Basic elementary math
Maybe D ??
Step by step explanation