Q21. Choose the correct form of the comparative adjective: "She is _______ than her sister."

Q22. What is the value of \( \lim\limits_{x \to 5} \frac{32x+1}{x^2-5x} ?\)

Q23. Identify the sentence with the correct use of the comparative adjective.

Q24. For the circle equation \( x^2+y^2+6x-8y-11=0 \), the radius is \(_{--------}\).

Q25. If \(\frac{dy}{dx} = 4x^3-3x^2+7\) and \(y=30\) when \(x=2\), then represent the \(y\) as a function of \(x\).

Q26. Which type of business letter is written to request information or clarification?

Q27. Find the \(\frac{d}{dx} (3 \sin(x) - 4 \sin^3 (x))\).

Q28. For the circle equation \( 3x^2+3y^2-6x+y-9=0 \), the center of the circle is \(_{------}\).

Q29. Identify the mode for the following data set: {21, 19, 62, 21, 66, 28, 66, 48, 79, 59, 28, 62, 63, 63, 48, 66, 59, 66, 94, 79, 19 94}

Q30. The given system of equation has \(_{--------------}\)
\(4x+2y=7\)
\(6x+3y=9 \)