Genetics: Are these genes on the same loci and explination?

In soreflies (a hypothetical insect), the dominant allele L, is responsible for the resistance to a common insecticide called Loritol. Another dominant allele, M, is responsible for the ability of soreflies to sing like birds. A true-breeding mute, Loritol resistant sorefly was mated to a true-breeding singing, Loritol sensitive sorefly, and the singing, Loritol resistant femlale progeny were test crossed with true-breeding wild-type (i.e., mute, Loritol sensitive) males. Of the 400 total progeny produced, 117 were mute and Loritol resistant, 114 could sing and were Loritol sensitive, 83 could sing and were Loritol resistant, and 86 were mute and Loritol sensitive. Do you think the (L) and (M) gene loci are linked or unlinked? Justify your answer.