500 Suppose consumers will purchase q units of a product at a price of T + 3 dollars per unit. What is the minimum number of units that must be sold in order that sales revenue be greater than $9000? The minimum number of units sold must be greater than 2834 . (Round down to the nearest whole number.) Solve the system algebraically. 39 X + = 4 2 5 31 16 X 4 8 . . . . . Select the correct choice below and, if necessary, fill in the answer box to complete your choice. O A. The solution is x = and y = (Simplify your answer.) O B. There are infinitely many solutions of the form x = and y = r. (Simplify your answer. Type an expression using r as the variable.) O C. There is no solution.Asupply equation and a demand equation for a product are given below. If p represents price per unit in dollars and q represents the number of units per unit of time, find the equilibrium point. Supply: 40q 2p + 240 = 0 Demand: 55q + p 720 = 0 The equilibrium point (q,p) is (Type an ordered pair.) A debt of $16,000 is being repaid by 17 equal semiannual payments, with the first payment to be made six months from now. Interest is at the rate of 7% compounded semiannually. However, after two years, the interest rate increases to 8% compounded semiannually. If the debt must be paid off on the original date agreed upon, nd the new semiannual payment. The new semiannual payment is $ . (Round the nal answer to the nearest dollar as needed. Round all intermediate values to six decimal places as needed.) A $256,500 mortgage for 15 years for a new home is obtained at the rate of 7.1% compounded monthly. Find (a) the monthly payment, (b) the interest in the first payment, (c) the principal repaid in the first payment, and (d) the finance charge. . . . . . (a) The monthly payment on the mortgage is $. (Round the final answer to two decimal places as needed. Round all intermediate values to six decimal places as needed.)A businesswoman wants to determine the difference between the costs of owning and leasing an automobile. She can lease a car for $480 a per month (on an annual basis). Under this plan, the cost per mile is $0.07. If she were to purchase the car, the fixed annual expense would be $4600, and other costs would amount to $0.12 per mile. What is the least number of miles she would have to drive per year to make leasing no more expensive than purchasing? I ..... \\ The businesswoman would have to drive at least D miles per year