Hello!
Answer:
![\boxed{ \bf The~correct~answer~is~10x~+~13y.}](https://img.qammunity.org/2021/formulas/mathematics/high-school/db5hxklay7bv059uzmedy1bolxj3g048ba.png)
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Step-by-step explanation:
(2x + 3y) + (8x + 10y)
First, drop the brackets:
2x + 3y + 8x + 10y
Next, collect like terms:
2x + 8x + 3y + 10y
Finally, add the like terms together:
10x + 13y