Barbata invests $2200 in the National Bank at 5%. How much additional money must she invest at 8% so that the total annual income will be equal to 6% of her entire investment?	Select the correct option.
A) 1100  B) 3000  C) 1000  D) 3600  E) 2400
Let the additional invested amount for 8% interest be x;   Equation will be;   2200+0.05*2200+x+0.08x = 2200+x+0.06(2200+x)   0.05*2200+0.08x = 0.06x+0.06*2200   0.02x = 2200(0.06-0.05)   x = 2200*0.01/0.02= 
<gadget id="calculator">2200*0.01/0.02</gadget>
<output>1_100</output>
1100   1100ns: "1100"
<result>A</result>
Barbata invests $2200 in the National Bank at 5%. How much additional money must she invest at 8% so that the total annual income will be equal to 6% of her entire investment?