Answer:
i believe the answer is 9
Step-by-step explanation:
Step-by-step explanation:
at 3=3
at 0=9
at 4=1
![y = ax + b](https://tex.z-dn.net/?f=y%20%3D%20ax%20%2B%20b)
![1 = 4a + b \\ 3 = 3a + b \\ 2 = - a \\ a = - 2 \\ 1 = - 4 \times 2 + b \\ b = 1 + 8 = 9 \\ y = - 2x + 9](https://tex.z-dn.net/?f=1%20%3D%204a%20%2B%20b%20%5C%5C%203%20%3D%203a%20%2B%20b%20%5C%5C%202%20%3D%20%20-%20a%20%5C%5C%20a%20%3D%20%20-%202%20%5C%5C%201%20%3D%20%20-%204%20%5Ctimes%202%20%2B%20b%20%5C%5C%20b%20%3D%201%20%2B%208%20%3D%209%20%5C%5C%20y%20%3D%20%20-%202x%20%2B%209)
You would get back $1
$9.99-$1.50= $8.49 <--- 15% off
$8.49x.06= .51 cents <--- Taxes
$8.49+.51<--cents= $9 <--- Total cost of the T-shirt
Answer:
A. between o.1 and o.3
Step-by-step explanation:
Between 1 and 3, there's 2.