as it sell at $5, the quntity sold is 200,
if the price decrease for each $0.1, quantity sold will increase 10
a) find the selling price of Good X which get the maximum profit;
b) find the maximum total profit per dayin selling Good X
show steps , thx!!!
更新1:
Re 自由自在: you are so fast that I even can't choose you as the best because the system do not allow Thx a lot
