10. B.E.S.T. TEST PREP select all the expressions that represent forty-one and nine tenths? \( \begin{array}{ll}\text { (A) } 41.9 & \text { (D) } 40+1+9 \\ \text { (B) } 41.09 & \text { (E) } 41 \frac{90}{10}\end{array} \)

The expression that correctly represents forty-one and nine tenths is (A) \(41.9\). This is because the decimal notation precisely captures the value of 41 plus 0.9, which is equal to 41.9. As for (E) \(41 \frac{90}{10}\), this expression also conveys the same value, as \( \frac{90}{10} \) simplifies to 9, resulting in \(41 + 9 = 41.9\). The other options either misrepresent the decimal or mistakenly include incorrect calculations.