Question

20×d+a?20÷d+a
d×a+6?d×a-6
12÷6+a?12×(6+a)

Answer 1

$20 \times d + a > 20 \div d + a$
$d \times a + 6 > d \times a - 6$
$12 \div 6 + a < 12 \times (6 + a)$