PLEASE HELP ME REAL SOON: Simplify sqrt (8 + 2sqrt15)

23. public and private investment in infrastructure include all of the following except a) worker knowledge and skill development b) telecommunication systems, internet provider systems, and power distribution systems c) highways, transit systems, airports, harbors, and educational facilities d) fire departments, police departments, and public safety systems e) water systems, wastewater treatment systems, and navigational systems

An important skill for the beginning home inspector is a. familiarity with reading electric meters. b. good telephone interviewing technique. c. experience in issuing building permits. d. ability to interpret building codes.

Free brainliest + free points if answered ! vehicles are expected to be moving at around on highways. a. 30-50 mph b. 40-60 mph c. 50-70 mph d. 60-80 mph