Here we are given that:
Quantity of almond given by almond trees per acre of land= 12 pounds
Quantity of almond given by almond trees per "a" acres of land= 12a pounds
Quantity of macadamia given by macadamia trees per acre of land= 8 pounds
Quantity of macadamia given by macadamia trees per "m" acre of land= 8m pounds
Total yield of nuts = 250 pounds
Total yield = yield of almonds + yield of macadamia
[tex]250=12a+8m[/tex]
Answer: The scenario can be represented by the equation [tex]250=12a+8m[/tex].