PLS HELP ME UNDERSTAND THIS

Answer:
the answer as a decimal is -0.7
{put the given value of j and k in the given equation.. and solve ....}
Answer:
0.45
Step-by-step explanation:
This question is asking you to find the value of the equation when j = -4 and when k = -0.7. To do this, we must substitute j with -4 and k with -0.7:
(-4 * -0.7 - 1) / -4
= (2.8 - 1) / 4
= (1.8) / 4
= 0.45