CALCULATOR 10. At Finky Feed Store, Gerby purchased 7 pounds of
cracked corn, 3 pounds of sunflower seed, and 8 pounds
of mixed bird seed for $31.00. Michael purchased 5
pounds of cracked corn, 4 pounds of sunflower seed,
and 10 pounds of mixed bird seed for $32.75. Jayleen
purchased 4 pounds of sunflower seed and 12 pounds
of mixed bird seed for $27.00. If c, represents cracked
corn, s represents sunflower seeds, and b represents
bird seed, which of the systems of equations below can
be used to determine the price per pound of cracked
corn, sunflower seed, and bird seed?