Answer:
- 8a - 21
Step-by-step explanation:
2(2a-3)-3(4a+5)
=4a-6-3(4a+5)
=4a-6-12a-15
=4a-21-12a
= -8a-21
3 minutes
The sales tax is 8%
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16
12 = 75%
4 = 25%
4 x 4 = 16
16 = 100%
Sorry if it's confusing but that's just how I think of it.