Math 1330 - Exam 2B Name: Turn in Scantron and exam. Make sure to put name and R number on scantron. For questions 15 - 17, use the following. A man has $200,000 invested in three properties. One earns 15%, one 12% and one 7%. His annual income from the properties is $20,000 and the amount invested at 7% is three times that invested at 12%. (Round your answer to the nearest cent.) 15. Amount invested at 15%: a. $22,380.95 b. $37,037.00 c. $51,851.85 d. $111,111.00 16. Amount invested at 12%: a. $62,000.00 b. $37,037.04 c. $111,111.00 d. $51,851.85 17. Amount invested at 7%: a. $51,851.85 b. $37,037.04 c. $22,380.95 d. $111,111.00 For questions 18-19, use the following. Suppose a primitive economy consists of two industries, farm products and farm machinery. Suppose also that its technology matrix is represented by the matrix shown below. A = 0.6 0.2 Products 0.2 0.4 ] Machinery If surpluses of 11 units of farm products and 12 units of farm machinery are desired, find the gross production of each industry