Can anyone explain me this two query

can anyone explain me this two query

100 / sum(rate(wmi_cpu_time_total{instance=~“3bhs001."}[5m])) * sum(rate(wmi_cpu_time_total{instance=~"3bhs001.”, mode=“dpc”}[5m]))

irate(wmi_logical_disk_reads_total{instance=“3bhs001”, volume !~“HarddiskVolume.+”}[5m])