Atriangle has two sides with a measure of 5cm and 7cm. which cannot be the third measure

Ineed ! the person who answers and shows their work on they got the answer first will be marked the !

Awater truck is filling a swimming pool. the equation that represents this relationship is y=19.75x where y is the number of gallons of water in the pool and x is the number of minutes the truck has been filling the pool.

Awindow washer cleans 42 windows in 2 hours. at this rate, how many windows did he clean in 180 minutes.