Answer:
k = 360.
Step-by-step explanation:
Multiply 7.2 to both sides
k/7.2 × 7.2 = 50 × 7.2
Simplify
k = 50 × 7.2
Solve for k
Therefore k = 360.
A. c - 12 = 6; c = 18
first answer is angles forming a linear pair sum to 180
second answer definition of perpendicular lines
third answer is substitution
I hope it is correct and helped you