Answer:
n-8
Step-by-step explanation:
The difference between a number and 8
Difference is subtraction
Let the number be n
n-8
440...marked down by 30% means u pay 70%
70% of 440 = 0.70(440) = 308
308 ..marked down by 10% means u pay 90%
90% of 308 = 0.90(308) = 277.20 <== price after markdowns
Fractions: 4/8, 1/2
Percent: 50%
Decimal: 0.50
