A Vacuum Servo also known as a power booster or power brake unit uses a vacuum to multiply the drivers pedal effort and apply that effort to the master cylinder. The vacuum can be generated in two distinct methods, dependent on the type of internal combustion engine, or other motive force (as in electric vehicles).
1 Hair length. 2  The cost of an updo hairstyle depends on the length of the hair. 3  Most salons quote starting prices, which increase the longer the clientâs hair is. 4  Hair at the middle of the back is regarded in salons as very long hair and often calls for higher rates. On average, an updo is going to cost anywhere from $45 to as much as $80. 2  Generally, bridal parties are going to pay more than those that walk in for a casual event.
Report Abuse. On Average a haircut can cost from $20 to $40. It really depends where you go. My haircuts cost $35. Being a male it probably would be cheaper for you as there is less hair to cut. The costs are based on age and length of hair.Some places are more expensive than others!here I live (eastern Kentucky) the average hair cut is between 8-12 dollars. however, according to an article I found the average price last year was 21 dollars.. wow. below is the article of a man who paid 800 dollars? for a haircut!! so I guess it varies.