1 Hiring a contractor to pour a concrete sidewalk runs around $5-$9 a square foot, or $1,500-$2,250 for a sidewalk 5 feet wide and 50 feet long. 2  Depending on the type of finish used, costs can be as high as $10-$18 or more a square foot, or $2,500-$4,500 for a 5-by-50-foot sidewalk. Depending on the type of finish used, costs can be as high as $10-$18 or more a square foot, or $2,500-$4,500 for a 5-by-50-foot sidewalk. 2  Materials and rental tools for a do-it-yourself project run about $3-$4 a square foot, or $750-$1,000 for a 5-by-50-foot sidewalk.
The Demographics of Social Media Users. 1  Facebook â 72% of adult internet users/62% of entire adult population. 2  Pinterest â 31% of adult internet users/26% of entire adult population. 3  Instagram â 28% of adult internet users/24% of entire adult population. 4  LinkedIn â 25% of adult internet users/22% of entire adult population. A quarter of online adults use LinkedIn, a proportion that is unchanged from the 28% of online adults who did so in September 2014.
LinkedIn is a business- and employment-oriented social networking service that operates via websites and mobile apps. Founded on December 28, 2002, and launched on May 5, 2003, it is mainly used for professional networking, including employers posting jobs and job seekers posting their CVs. As of 2015, most of the company's revenue came from selling access to information about its members to recruiters and sales professionals. As of April 2017, LinkedIn had 500 million members in 200 countries,