Answer:245
Step-by-step explanation:
hope this helps
Answer:
10x+13y
remove parentheses:
2x+3y+8x+10y
add like-terms:
2x+8x+3y+10y
add numbers with the same variables/elements
10x+3y+10y-->10x+13y
-2/3 or 1/2
both eqn equal to zero
then we know that
21,678 rounded to the nearest ten is 21,680
