Question 707863
B+V=175
B=175-V
5B+6V=910
5(175-V)+6V=910
875-5V+6V=910
V=910-875
V=35 NUMBER OF VIDEOS SOLD.
B+35=175
B=175-35
B=140 NUMBER OF BOOKS SOLD.
PROOF:
5*140+6*35=910
700+210=910
910=910