Answer: Choice A
The number line graph is visually showing every number that is 19 or smaller; hence 
Note the use of a closed or filled in circle at the endpoint (in contrast to an open circle). This indicates we are including the endpoint 19 as part of the solution set, and that's why we go for "or equal to" as part of the inequality sign.
Hello :
wt = wx +xt
xt = wt - wx=(4x+5) - (x+5) = 3x
Hello!
To solve, we want to isolate the x on one side of the equation. We can use inverse operations to put numbers on the other side to find x.
First we undistribute our parentheses.
12x-66+15=21
We subtract 15 from both sides (it cancels out the 15 on the left side, making it 0).
12x-66=6
Now we add 66 to both sides, as -66+66=0
12x=72
Finally, we divide both sides by 12.
x=6
I hope this helps!
Not really sure of this one but i think it's like this-
2/10 (money for story) + 3/10 (26.80 dollars to brother)= 1/2 of his money
3/10x=26.80 268=3x ; x= 89.33333....
89.33 X 5/10= answer
money left= (roughly) 44.67
