Answer:
I think it would probably be a.
Explanation:
I need help with math but people aren’t helping me sorry just had to type sun
Answer:
The scale is represented by numbers ranging from 0 to 14 where 7 is neutral. Greater than 7 on the pH scale is more alkaline and less than 7 is more acidic. The pH of hair ranges between 4.5 – 5.5. Lye relaxers range from 12 – 14 and no-lye relaxers range from 9 – 11
Explanation:
T.V, computer, radio, mobile phone, tablet, etc.