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.
Young Americans continue to be the most likely to use social networks, according to the survey, with 90 percent of those 18 to 29 reporting that they use at least one social site. However, growth in usage by young adults started tapering off in 2010, while use by older people has surged.