Ok I have a question! Can someone teach me how to do tax sale math? Or explain?

Let's say you buy a shirt. The shirt costs $10.00. The tax in your area is 9%.

This means that 9% of your purchase will be added to the subtotal to get the total.

9% of 10 is .9 (money speaking, its 9 cents.)

Therefore, you will add 9 cents to the total $10 for the shirt,

So now you pay $10.09 all together.

Does this make sense?

~theLocoCoco

-7

step-by-step explanation:

x^2 + 18x + 74 = (x + 9)^2 - 81 + 74

= (x + 9)^2 - 7.

so q = -7.