A linear programming computer package is needed. securities to stabilize income. The various revenue-producing investments together with annual rates of return are as follows. - Risk-free securities may not exceed 30% of the total funds available for investment. - Signature loans may not exceed 10% of the funds invested in all loans (automobile, furniture, other secured, and signature loans). - Furniture loans plus other secured loans may not exceed the automobile loans. - Other secured loans plus signature loans may not exceed the funds invested in risk-free securities. A linear programming computer package is needed. securities to stabilize income. The various revenue-producing investments together with annual rates of return are as follows. - Risk-free securities may not exceed 30% of the total funds available for investment. - Signature loans may not exceed 10% of the funds invested in all loans (automobile, furniture, other secured, and signature loans). - Furniture loans plus other secured loans may not exceed the automobile loans. - Other secured loans plus signature loans may not exceed the funds invested in risk-free securities