What is the area of this square with sides of 5x⁴y²?

What is the percent of increase for a population that changed from 438,000 to 561,000

Afurniture store has 1,500 chairs in storage. a manager uses three delivery receipts to simulate samples to check 100 chairs and note the number of brown chairs. suppose the actual number of brown chairs is 1,080. about how many brown chairs are

This is about circle theorems. someone asap : (