To solve this question, follow the steps below.
Step 01: Substitute j and k by its corresponding values.
j = 6
k = 0.5
Then,
[tex]\begin{gathered} 3.6j-2k \\ 3.6\cdot6-2\cdot0.5 \\ \end{gathered}[/tex]
Step 02: Solve the multiplications.
[tex]21.6-1[/tex]
Step 03: Solve the subtraction.
[tex]20.6[/tex]
Answer: b. 20.6.
