I’m guessing you mean like this.
2x+4y+5x+8y.
2x and 5x are like terms because the x’s are alike. If you add 2+5, the answer is 7. So therefore 2x+5x=7x.
4y and 8y are like terms because the y’s are alike. So the answer to 4y+8y would be 12y.
If you need extra help, give me a problem and I will help you solve it.
19/25=.76 or 76%
17/20=.85 or 85%, so, Keiko get a better grade on the second test
Step-by-step explanation:
n + 8 ≤ 13
n ≤ 13 - 8
n ≤ 5
n = {5,4,3,2,etc}
We know Distance formula is Distance = speed * time

Let, the distance Omar traveled = d and speed is 10 miles per hour
Time taken t for the first trip 
Let, the distance Omar traveled = d and speed is 30 miles per hour
Time taken t for the return trip 
Total time taken = 
Now, 
Total distance = d+d= 2d
Average speed =
= 
His average speed for the entire trip from home to the gift store and back is
15 miles per hour
Answer: x= 2/15
as a decimal it is x=0.13 and a line on top of the 3
but your answer is
X=2/15
Step-by-step explanation: Hope this helps please mark me brainlest