Correct answer gets brainliest and full ratings, i really need with these : (

The symbol  means x is less than or equal to a certain value (in this case, 4). 

Your first step is to find 4 on the x axis, because your inequality is for x (This eliminates the first 2 answers, as they solve for y). You know x can be equal to 4, so you make a solid, vertical line through that value (the line is vertical because the y value can be anything because it is not in the inequality). 

Next, x can be less than 4, not greater, so you shade to the left of the line (this is were the smaller numbers are). 

It is always wise to test a point to make sure you shaded in the correct direction. (0, 0) is a nice simple one. You plug in your value(s)... and 0 is indeed less than or equal to 4, so you know you shaded in the correct direction.

Hope this helps.

You must find the surface of the block therefore 98187 dived by 5628 = 583m squared

Element 17 is chlorine it is a group 7 element(halogen) and belongs to period 3 of the periodic table