​ Help please!

The line under the less than sign means "possibly equal."

Therefore, the comparison is between:  2x  <= 10  which means "twice x is either less than or equal to 10"  and  2x  <  10 which means that "twice x is strictly less than 10 (and never equal to 10)."

Since x = 5, 2x = 10 which makes the first inequality true and makes the second inequality false.

if

$x=5$

then

$2x=10$

the$\le$ sign means that it is less than or equal to.

the$<$ sign means that it is strictly less than.

since we know that $2x=10$, so we can have $2x\le10$ but not $2x<10$.