Algebra
Solve 3(x+5) = 9
What is the area of a semicircle with diameter 8?
8pi
What is the probability of rolling a prime number on a 9-sided die?
4/9
How many numbers from 2 to 9 except 7 evenly divide 123456789?
2
A set of three numbers has median 17, range 21, and mean 20. What is the largest number?
32
In an isosceles triangle, the vertex angle is twice as large as the two angles that are equal. What is the measure of the vertex angle?
90
How many ways can five people arrange themselves in a line?
120
What is gcd(350, 455)?
35
Solve x2 + 9x + 18 = 0
What is the area of an isosceles triangle with side lengths 5, 5, 8?
12
When rolling two standard dice, what is the probability the sum of the two numbers shown is 6 or 7?
11/36
What is lcm(9x2, 5x)?
45x2