hi! im chimken and i have your answers!
+ = . ----- half note, quarter note, dotted half note
+ . = . ----- quarter note, dotted half note, whole note
+ = . ----- half note, whole note, dotted whole note
♫ + = ----- two eighth note, quarter note, half note
♫ + ♫ = ----- two eighth note, two eighth note, half note
i hope this helps, im not a band student so i hope none of them were wrong. have a good day!
