-18
30% off $12:= 30% discount applied to $12= $12 - (30% x $12)= $12 - (30% x $12)= $12 - (0.30 x $12)= $12 - $3.60= $8.40
It is (12-30)/6 or 12-30/6? (12-30)/6 = -3 12-30/6 = 8
30
18 + 12 = 30
12 as a fraction of 30 = 12/30 or 2/5
(12 / 30) x 100 = 40Therefore, 12 is 30 percent of 40.
"Half past twelve" is a time reference that is referring to 12:30
42
12 divided by 30
30 * 12 = 360
42