Free SAT practice questions for Math and Reading & Writing.

Standard English Conventions

Which revision of the sentence corrects its sentence boundary error? Original: Although the museum expanded its galleries in 2015 the attendance did not rise until the following year.

• A.Although the museum expanded its galleries in 2015. The attendance did not rise until the following year.
• B.Although the museum expanded its galleries in 2015; the attendance did not rise until the following year.
• C.Although the museum expanded its galleries in 2015, the attendance did not rise until the following year.
• D.The museum expanded its galleries in 2015 although, the attendance did not rise until the following year.

Expression of Ideas

A student writing about the history of coral reefs has taken the following notes. Coral reefs cover less than one percent of the ocean floor. Reefs provide habitat for roughly a quarter of all known marine species. Corals are sensitive to water temperature, and prolonged warming can cause them to expel the algae that supply their food. Without these algae, corals may turn white and die, a process called bleaching. The student wants to highlight the link between a small physical area and a large ecological role. Which choice best accomplishes this goal?

• A.Coral reefs cover less than one percent of the ocean floor, yet they provide habitat for roughly a quarter of all known marine species.
• B.Coral reefs cover less than one percent of the ocean floor, and corals can turn white when they expel their algae.
• C.Many marine species live in coral reefs, which are sensitive to changes in water temperature and may bleach as a result.
• D.Roughly a quarter of all known marine species depend on corals, which are made up of tiny animals that build reef structures.

Information and Ideas

Passage: Historians have long claimed that the Harlow canal was built largely by enslaved laborers, but no payroll or labor records from the period survive. A recently discovered letter from the canal company's engineer, however, lists the names of forty workers and describes them as 'bound to the company for debts.' Which choice most effectively uses evidence from the passage to support the claim that the canal's workforce included people held under debt obligations?

• A.Historians have long claimed that the canal was built largely by enslaved laborers.
• B.No payroll or labor records from the period survive.
• C.The engineer's letter lists forty workers and describes them as 'bound to the company for debts.'
• D.The canal was completed after the company's founding.

Advanced Math

Which of the following expressions is equivalent to $x^2-9$?

• A.$\displaystyle (x-3)(x+3)$
• B.$\displaystyle (x-9)(x+1)$
• C.$\displaystyle (x-3)^2$
• D.$\displaystyle (x+3)^2$

Algebra

What is the value of $x$ if $3x + 7 = 22$?

• A.3
• B.5
• C.7
• D.9

Geometry and Trigonometry

An arc of a circle with radius $6$ has a central angle of $\frac{\pi}{3}$ radians. What is the length of this arc?

• A.$\displaystyle \pi$
• B.$\displaystyle 2\pi$
• C.$\displaystyle 3\pi$
• D.$\displaystyle 6\pi$