7. Find the measure of KLM and M

Answer:
m∠KLM = 64° ; m∠M = 26°
Step-by-step explanation:
(20x + 4)° = (6x + 4)° + (8x + 18)°
20x + 4 = 14x + 22
6x = 18
x = 3
m∠KLM = (20×3 + 4)° = 64°
m∠M = 90° - 64° = 26°