Explanation:
1 Reasoning: the drawing of inferences or conclusions from known or assumed facts; the use of reason. 2 Critical thinking: To evaluate and judge the accuracy of statements and the soundness of the reasoning that leads to conclusions.
Everyone 
done his or her homework.
Explanation:
Everyone is singular and, therefore, require singular verb.
Taxable income for 40,000.....4386.25 + 25% of the amount over 31,850
4386.25 + 0.25(40,000 - 31,850) =
4386.25 + 0.25(8150) =
4386.25 + 2037.50 =
6423.75 <===
Can you upload a picture of what you're talking about?
