Which equation would best fit the data?

Xto the second power plus 14x plus 48. what are the factors? we are doing factoring trinomials with a=1

In a class, there are 12 girls. if the ratio of boys to girls is 5: 4 how many boys are there in the class

Aconstruction worker has rope 9 m long he needs to cut it in pieces that are each 3 /5 m long how many such pieces can he cut without having any rope leftover?