Tính dz(0,1) của hàm ẩn (x, y) xác định bởi hệ thức x² + 2y + z = ye^x²

Find the greatest common factor of 28 and 35

The last time i bought this product , it cost $20.00 but it looks like it cost 29. 60 today? what is the increase

The sum of two numbers is 86, and their difference is 20. find the two numbers