These are questions from Khan Academy SAT preparation.
Which of the following is equivalent to the expression 3(2x + 4)?
6x + 12
6x + 8
2x + 12
3x + 4
Which of the following is a prime number?
4
9
15
17
The average (arithmetic mean) of four numbers is 20. If three of the numbers are 15, 25, and 30, what is the fourth number?
10
20
25
In the sentence, 'Despite the bad weather, the picnic continued as planned,' what is the function of the word 'despite'?
Verb
Adjective
Conjunction
Preposition
What is the solution to the inequality 2x - 3 > 7?
x > 5
x < 5
x > 2
x < 2
If f(x) = 2x + 3, what is f(5)?
8
13
18
In the passage, the author primarily describes the relationship between two characters as:
Supportive
Antagonistic
Indifferent
Romantic
Which of the following words is a synonym for 'elated'?
Confused
Joyful
Angry
Fearful
If 3x - 5 = 16, what is the value of x?
5
6
7
In a right triangle, one angle is 30°. What is the measure of the other non-right angle?
45°
60°
75°
90°