Can someone help me solve x and y?

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

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.

Check all that apply. f is a function. f is a one-to-one function. c is a function. c is a one-to-one function.