Answer:
Price of Caleb's groceries before tax= $6.4
Step-by-step explanation:
Let price of groceries before tax be = $ 
Sales tax % = 2.5%
Sales tax applied = 
Actual sales tax paid = $1.60
∴ 
Multiplying both sides by 100.


Dividing both sides by 25.


∴ Price of groceries before tax= $6.4
Answer:
(2a + 1)(a + 3) = 2a² + 7a + 3
Answer:4.3
You round to the tenths place
I think the answer is 17%
A = 11/5, let me know if you need me to tell you how i got it (show my work)