What is the output from main (below) after the following function is called. void calculateCost(int count, double& subTotal, double& taxCost) // definition { if ( count < 10) subTotal = count * 0.50; else subTotal = count * 0.20; taxCost = 0.1 * subTotal; } int main() { double tax = 0.0, subTotal = 0.0; calculateCost(15, subTotal, tax); // function call cout << "The cost for 15 items is " << subTotal << ", and the tax for "<< subTotal << " is " << tax << endl; return 0; }

7. design a circuit with three inputs (x, y, and z) representing the bits in a binary number, and three outputs (a, b, and c) also representing bits in a binary number. when the input is 1, 2, or 3, the binary output should be one lesser than the input. when the input is 4, 5, or 6, the binary output should be one greater than the input. when the input is 0, the output is 0, and when the input is 7, the output is 7. show your truth table, all computations for simplification, and the final circuit.