45 + ( 10 / 100 ) * 45 = 49.5 > 45 No
40 + ( 5 / 100 ) * 40 = 42 < 45 Yes
50 - ( 20 / 100 ) * 50 = 40 < 45 Yes
36 + ( 15 / 100 ) * 36 = 41.4 < 45 Yes
Volume of a rectangular prism is = L*W*H
Volume of box A is 4800cm^3
Since price is determined by volume, and the price of box A is $6.24 we need to find the price per cm^3. $6.24/4800cm^3 = $0.0013 per cm^3
Volume of box B is 5280cm^3
5280 * 0.0013 = $6.864 which is answer c
28 because 7×4=28 as the same as 4×7=28 so its greater then