Acidity is measured on the pH scale. The acidity of a substance is given by pH=-logH, where H is the concentration of Hydrogen ions. If a substance has a pH of 6, which equation could be used to find its H value?

15 and 14.7 are 1 apart, so 15 – 14.7 must be 1.

Suppose you are an avid reader and are looking to save money on the cost of books instead of paying about $20 for each book, you decide to look into purchasing a kindle for $120 you can purchase e-books for about $5 each 1. find the slope-intercept equation for the cost of the hard copy of books using x to represent the number of books 2. find the slope-intercept equation for the cost of the kindle with cost of e-books using x to represent the number of books

Asporting good store is offering 30 percent off of the original price(x) of football cleats. the discount will be reduced by an another $7 before sales tax.