Add spaces: ageofyoungestperson(88)

Answer: age of youngest person (88)

Add spaces: Formatofdocumentinpage-prooffilemustbesimilartocutproductformat.

Answer: Format of document in page-proof file must be similar to cut product format.

Add spaces: OnFridaywecanexpectcloudlessweather.Morningtemperatureswillbearound18C.Duringthedaytheywillreachamaximumof32C.Lowtemperaturesatnightwillbearound17C.Initiallywehavemoderatenortherlywind,intheeveningwindswillbebriskwithstronggusts.

Answer:
On Friday we can expect cloudless weather. Morning temperatures will be around 18 C. During the day they will reach a maximum of 32 C. Low temperatures at night will be around 17C. Initially we have moderate northerly wind, in the evening winds will be brisk with strong gusts.