Okay. So the bill was a total of $725, with 6% sales tax added. To find the amount of sales tax, all you have to do is multiply the amount on the bill by the percentage of tax. 725 * 6% (0.06) is 43.5. There. The sales tax was $43.50.
You can factor x^2+6x+8 using the AC method.
Which would be: (x+2)(x+4)
Hope I helped.
The answer is 4.222222222222
38÷9=4.222222222222