1. 2x+ 4+3x
= (2x+ 3x)+ 4
2. <span>12 + 5x -8
= 5x + (12-8)
3. </span><span>2x^2 + 3x^2 + 4x
= (2x^2+ 3x^2)+ 4x
4. </span><span>5ax - 12 - ax
= (5ax -ax) -12
5. </span><span>4xy + 2x + 3xy + x
= (4xy+ 3xy)+ (2x+ x)
Hope this helps~</span>
Let x represent the number of song downloads and let y represent the total cost
y=0.95x+70
Omar spent 600 dollars for earning 1800 reward points.
<em><u>Explanation</u></em>
Omar earns 300 reward points for every 100 dollars he spends.
Suppose, he spent
dollar for 1800 reward points.
Now <u>according to the ratio of "amount of money spent" and "reward points"</u> , the equation will be......

Thus, Omar spent 600 dollars for earning 1800 reward points.
Answer:
the equation describes a horizontal line with a y-intercept of -4. as the line is horizontal, the slope is 0. The slope is 0 and the y-intercept is -4.
We have to find the value of the expression 
We know that the below values.

Hence, in order to find the value of the given expression, we can first rewrite it in terms of 

Now, we know that 
Hence, we have



C is the correct option.