The equation for the ph of a substance is ph = –log[h+], where h+ is the concentration of hydrogen ions. what is the approximate ph of a solution if the concentration of hydrogen ions is 5.0 × 10–4 moles per liter?
2.7
3.0
3.3
3.6

Karl needs to build a stage that has an area of 72 square feet. the length of the stage should be longer than the width. what are the possible whole number measurements for the length and with of the stage complete the table with possible measurements of the stage

Need asap. solve for the following inequality

Percent increase and decrease. original number: 45 new number: 18