Line graphs and line plots

A class measured $12$ pencils to the nearest quarter inch and made a line plot. The table shows the data.

Length (inches)	$4\frac{1}{2}$	$4\frac{3}{4}$	$5$	$5\frac{1}{4}$	$5\frac{1}{2}$
Number of pencils	$2$	$4$	$3$	$1$	$2$

How many pencils are shorter than $5$ inches?

A class measured $12$ pencils to the nearest quarter inch and made a line plot. The table shows the data.

Length (inches)	$4\frac{1}{2}$	$4\frac{3}{4}$	$5$	$5\frac{1}{4}$	$5\frac{1}{2}$
Number of pencils	$2$	$4$	$3$	$1$	$2$

If all $12$ pencils were laid end to end, what would the total length be, in inches? Enter a fraction, mixed number, or decimal.

Leo measured $10$ crayons to the nearest eighth of an inch and made a line plot. The table shows the data.

Length (inches)	$2\frac{1}{8}$	$2\frac{1}{4}$	$2\frac{3}{8}$
Number of crayons	$3$	$2$	$5$

What is the total length of all $10$ crayons, in inches?