Answer:
7816
BHID is your code
Step-by-step explanation:
1. 7
3b+a²
3(2)+1²
6+1
7
2. 8
4(e - c)
4(5-3)
4(2)
8
3. 1
2e-3c
2(5)-3(3)
10-9
1
4. 6
e+a-3f
5+1-3(0)
5+1
6