What is the single equivalent rate of discount for multiple trade discounts of 20% and 10%?* 82% O28% O 27% O 72% If (In 7) = x, which of the following statement is correct: * Ox 2 O x=2 O None of the above If C=$250, E=.2C and P=.25S, find S. * O 300 O 400 200 150 Evaluate: 81+30(3x5)-9 * O 75 108.3 74 O 71