Depends on the length AND material of both. The generic comparison between a 15cm wooden pencil, with a 30cm plastic ruler: most likely the ruler weighs more.
0.25 is the cost of the pencil.
25
0.50 0.50 + 1.00 = 1.50
ruler
grams definitely...a pencil weighs more than a paper clip and a paper clip weighs about a gram.
A ruler: une règle. A pencil: un crayon.
Ruler
a ruler
pencil and ruler?
The easy way to find the length of a pencil is to use a ruler to measure it. A "small" ruler might not make it, but a "regular" one foot ruler will do the job nicely.
There is no such unit of measurement as a pencil.
by using a ruler and pencil