HELP PLEASE ITS DUE IN 20 MINS OMG

1. are the triangles similar and if so why? what is the value of x? show your work.

Anew shopping mall is gaining in popularity. every day since it opened, the number of shoppers is 5% more than the number of shoppers the day before. the total number of shoppers over the first 10 days is 1258 how many shoppers were on the first day?

The average length of a king cobra is 3.7 m. the record length is 1.88 m longer than the average. how long is the record holder?