Answer:
Herbal tea box = 3
Regular tea box = 7
Explanation:
Le x be the number of herbal tea box and y be the number of regular tea box.
The herbal tea variety cost $1.50 per box and the regular variety cost $1.00 per box they bought A total of 10 boxes and spent $11.50.
.... (1)
... (2)
From (1) and (2) we get





Substitute x=3 in equation (1).

Therefore, the number of herbal tea boxes is 3 and the number of regular tea boxes is 7.