5.a. If the price is $ X, it is necessary to urge the insurance. Current maintenance deposit =3000- loss 3000-(X-2.50)*5000=X/2.50*2000, x = 2.67 $ B. Assuming the price is x, The solution of current maintenance deposit+1500=3000+ profit 3000+(2.50-2000) 2000+1500 is X=2.4 1$6. The total amount of deposit paid is x yuan = yesterday's deposit+profit and loss+payment/kloc-. (6 1.20-58.30)/ 100 * 40000 = 1 160 $