nd help pl, um its algebra fyi

1/2 n =18

n=

What is the remainder when 2872 is divided by 76? a) 51 b) 57 c) 60 d) 63

Read the situations in the table below. then drag a graph and equation to represent each situation. indicate whether each of the relationships is proportional or non-proportional. edit : i got the right answer its attached

Having a hard time understanding this question (see attachment).