Answer:
LOL
Step-by-step explanation:
they both get 0.5% or 1/8 pieces
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
hope this helps