a rectangular sticker has an area of 50 square centimeters. its perimeter is 30 centimeters. what are the dimensions of the sticker

Find the missing dimension! need asap! tiny square is a =3025 in ²

Ineed with question three. i don't understand how i'm supposed to achieve 3 marks.

Travis has decided to budget his spending money. he can spend no more than $143.15 every month. he has also decided to spend 5.2 times as much money on video games as he spends on the movies.what linear inequality describes this problem