The image contains a math word problem related to part-time work. Here's a breakdown of the problem:

Problem Summary:

• Besar has two part-time jobs.
  • For delivering goods, Besar earns Rp15,000 per hour.
  • For washing dishes at a restaurant, Besar earns Rp9,000 per hour.
• Besar cannot work more than 10 hours in total.
• He needs Rp120,000.

The questions asked are:

1. (a) Write the mathematical model.
2. (b) Is this mathematical model a system of linear inequalities?
3. (c) Draw the graph.
4. (d) Determine the coordinates of the points of intersection.

Solution Steps:

1. (a) Mathematical Model: Let:

   • $x$ = hours spent delivering goods.
   • $y$ = hours spent washing dishes.

   The following constraints apply:

   • The total number of hours cannot exceed 10: $x + y \leq 10$
   • Besar needs to earn at least Rp120,000: $15000x + 9000y \geq 120000$

   Therefore, the system of inequalities is:

   x + y \leq 10 \\ 15000x + 9000y \geq 120000 \\ x \geq 0, y \geq 0 \end{cases}$$

2. (b) This system is a system of