Help me my grade depends on this

Answer:
If it’s asking what it is before the tax, it’s just $25.20. With the tax, it’s $26.46
Step-by-step explanation:
Answer:
24
Step-by-step explanation:
b + b * 5% = 25.20
b + b * 0.05 = 25.20
b*(1 + 0.05) = 25.20
1.05 * b = 25.20
so
b = 25.20/1.05 = 24