Can someone please help me I need this asap

What is the answer to |-2x-5|-|-4+8| and x=7

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?

Valentina is subtracting from . she finds the lcd to be 15y2. what is valentina's next step?