The image you uploaded contains a mathematical problem related to calculating the total number of employees and the number of items purchased. Let's break it down step by step.

The problem gives us:

• A hotel buys 500 items, which include two types of items: Type A and Type B.
• The price of each Type A item is 80,000 VND, and each Type B item costs 90,000 VND.
• The total amount spent on 500 items is 42,000,000 VND.
• Each employee in the hotel is rewarded based on their performance with 2 Type A items and 1 Type B item if they perform well.
• An employee from the other group receives no reward. The reward for good performance is for 50% of the employees in the entire hotel.

To calculate the number of employees and the number of each type of item, we can create an equation system:

Let's define:

• $x$ = the number of Type A items
• $y$ = the number of Type B items

Given information:

• The total cost equation: $80,000x + 90,000y = 42,000,000$
• The total number of items equation: $x + y = 500$

We can solve this system of equations to find $x$ and $y$, and then calculate the number of employees in the hotel based on the reward distribution.

Would you like me to continue with the solution and perform the calculations?