SAT Math

Simplify
(1/3)(21m + 27)

• 63m + 9
• 7m + 9
• 7m + 81
• 7m + 27

• A
• B
• C
• D

• A
• B
• C
• D

Tags

CCSS.HSF.LE.B.5

• A
• B
• C
• D

Tags

CCSS.HSF.IF.A.2

In a certain game, a player can solve easy or hard puzzles.  A player earns 30 points for solving an easy puzzle and 60 points for solving a hard puzzle.  Tina solved a total of 50 puzzles playing this game, earning 1,950 points in all.  How many hard puzzles did Tina solve?

• 10
• 15
• 25
• 35

Tags

CCSS.8.EE.C.8C

If the cost of living in a certain city increased by 20% in the 10 years from 1980 to 1990, and increased by 50% in the 20 years from 1980 to 2000, what was the percent increase in the cost of living from 1990 to 2000?

• 15%

• 20%

• 25%

• 30%

In the xy-plane, perpendicular lines a and b intersect at the point (2, 2). If line a contains the point (7, 1), which of the following points is on line b?

• (0, 1)

• (4, 5)

• (7, 3)

• (3, 7)

If the average (arithmetic mean) of a and b is greater than the average (arithmetic mean) of c and 2b, which of the following must be true?

• b > 0

• a > b

• a > b + c

• a + c > b

Which of the following is equivalent to the statement |x − 2| < 1?

• x < 3

• x < −1

• 1 < x < 3

• −1 < x < 3

In the xy‐plane above, a point (not shown) with coordinates (s, t) lies on the graph of the linear function f. If s and t are positive integers, what is the ratio of t to s ?

• 1 to 3

• 1 to 2

• 2 to 1

• 3 to 1