The answer for the distibutive oneis 7(4+6)
Answer:
NO se sorry presta atención para que no andes preguntas
Sarah purchased 2 first class tickets, and 5 coach tickets. This is the answer because $2640- $1020-$1020=$600, and $600÷5=$120.
POH is the -log [ OH- ]. Using this equation, simply find the -log of the OH- concentration to find the pOH:
pOH = - log ( 0.000086 ) = 4.07
