Which of the following is called the connecting link between plants and animals? 

I. x² – 19x + 88 = 0

II. (y + 4)² = 121

Quantity I: The price of rice is decreased by 30%, by how much % the consumption is increase so that the expenditure will decreased by 10%?

I. 63x² + 146x + 80 = 0

II. 42y² + 109y + 70 = 0

I. 84x² - 167x - 55 = 0

II. 247y² + 210y + 27 = 0

I. 5x + 2y = 31

II. 3x + 7y = 36

I. 40x² + 81x + 35 = 0

II. 63y² + 103y + 42 = 0

I. x² + 16x + 63 = 0

II. y² + 2y - 15 = 0

I. 5x + y = 37

II. 4y+ x = 15

I. 88x² - 13 x – 56 = 0

II. 15 y² + 41 y + 28 = 0

I. 2x² - 7x + 3 = 0

II. 8y² - 14y + 5 = 0