Reflect (-5,-4) over the y axis. What is the location?

Jane moves from a house with 71 square feet of closet space to an apartment with 45.44 square feet of closet space. what is the percentage decrease of jane’s closet space?

Cody was 165cm tall on the first day of school this year, which was 10% taller than he was on the first day of school last year.

Can someone, me with this.i really need with this