Answer:
C
Step-by-step explanation:
reasonable is 0 through 50.
mathematically the x values go to infinity both ways.
Answer:
..................................
Sleeping bag weights 8 pounds
sb=8
backpack+sleeping bag=31
b+sb=31
sb=8
b+8=31
subtract 8 from both sides
b+8-8=31-8
b+0=23
b=23
backpack weighs 23 pounds with out sleeping bag
equation is b+s=31
s=8
Step-by-step explanation:
all work is pictured and shown