Q1: What is the value of $15 \times 3 + 7$?

Q2: If $2x - 5 = 11$, what is the value of $x$?

Q3: Calculate the area of a circle with radius $r=5$ cm. Use $\pi \approx 3.14$.

Q4: Simplify the expression $\frac{2}{3} + \frac{1}{6}$.

Q5: What is the result of $3^4$?

Q6: Calculate $20\%$ of $150$.

Q7: What is the principal square root of $144$?

Q8: If $f(x) = 3x^2$, what is the derivative $f'(x)$?

Q9: What number does the Roman numeral $XIX$ represent?

Q10: How many meters are in $3.5$ kilometers?

Q11: Express $0.0000045$ in scientific notation.

Q12: What is the next number in the sequence $2, 4, 8, 16, \dots$?

Q13: Evaluate $|-8| + |3|$.

Q14: Solve for $y$: $\log_{10}(1000) = y$.

Q15: What is the mean of the numbers $4, 6, 8$?

Q16: Calculate the perimeter of a rectangle with length $10$ and width $3$.

Q17: If $A = \{1, 2, 3\}$ and $B = \{3, 4, 5\}$, what is $A \cap B$?

Q18: What is the probability of rolling a $4$ on a standard six-sided die?

Q19: If a right triangle has legs of length $3$ and $4$, what is the length of the hypotenuse?

Q20: What is the discriminant of the quadratic equation $x^2 + 2x + 1 = 0$? ($\Delta = b^2 - 4ac$)

Q21: If a car travels $180$ miles in $3$ hours, what is its average speed in miles per hour?

Q22: Evaluate $10 - (4 + 2) \times 1$.

Q23: What is the slope ($m$) of the line $y = 3x - 7$?

Q24: If $f(x) = x^2 - 1$, find $f(3)$.

Q25: Calculate the volume of a cube with side length $4$ units.

Q26: What is the value of $\sin(30^\circ)$?

Q27: Evaluate $5!$ ($5$ factorial).

Q28: Which value of $x$ satisfies $3x - 1 > 8$?

Q29: If a class has $15$ boys and $10$ girls, what is the ratio of boys to girls in simplest form?

Q30: Which quadrant does the point $(-2, 5)$ lie in?