In todays modern notation of Roman numerals: 2400 = MMCD
But the ancient Romans would havenotated them quite differently
626 = DCXXVI 308 = CCCVIII 2,400 = MMCD
M is 1000, C is 100 and D is 500. Because the C is before the D you subtract, making 400. MMCD represents 2400.
2700-2400/2400= 300/2400=.125 12.5%
2400
2400
40% of 2400= 40% * 2400= 0.4 * 2400= 960
2400
2400
2400
5 x 2400 = 12000 5% of 2400 = 120
75% of 2,400= 75% * 2400= 0.75 * 2400= 1,800
2400 feet!