Ineed with number 2 and can you plz me with showing my work

This summer the number of tourists in salem increased 4.5% from last years total of 426000. how many more tourists came to salem this summer

Jon’s weight loss for each week of the month is 5 lbs., 2.5 lbs., and 2.5 lbs. he gained 3.5 lbs. the last week. if jon originally weighed 198 lbs., how much does he weigh now?

At store a, erasers are sold individually. the cost y of x erasers is represented by the equation y=0.75x. the costs of erasers at store b are shown in the graph.