Answer:
y = 3x + 7
Step-by-step explanation:
Assuming you need an equation, we can use the point-slope formula in order to do so.
![y-y_1=m(x-x_1)\\y-7=3(x-0)\\y-7=3x\\y=3x+7](https://tex.z-dn.net/?f=y-y_1%3Dm%28x-x_1%29%5C%5Cy-7%3D3%28x-0%29%5C%5Cy-7%3D3x%5C%5Cy%3D3x%2B7)
Answer:
8.89
Step-by-step explanation:
Take the cost of the item times the tax rate to find the amount of tax
126.99 * 7%
Change to decimal form
126.99 * .07
8.8893
Round to the nearest cent
8.89
Width 2x-5 hope this helped