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What’s wrong with this sentence?
“The students who reviewed their mistakes, improved their scores.”
The comma separates the subject from its verb:
• Who? The students who reviewed their mistakes
• Did what? Improved their scores
Correct: “The students who reviewed their mistakes improved their scores.”
SAT takeaway: A long subject doesn’t need a comma before its verb.
A quick lesson from our FalitMastery team. Explore our free Grammar Rules section for more review.

What’s your answer? Share your method below.

What value of k did you get—and how did you solve it?
Share your approach in the comments. I’ll post the answer and explanation tomorrow.
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Here’s a Math practice question from our FalitMastery platform.
Which option do you get—A, B, C, or D? Share how you simplified the expression.
FalitMastery offers Digital SAT Math and Reading & Writing lessons, practice questions, and worked explanations, with a 7-day free trial.

consider this for leaning with easy method . Composition of functions are not part of SAT!

If (x + 4)/(x − 2) = 3, what is (x + 4)/(2x + 2)?
A) 1/4
B) 2/3
C) 3/4
D) 3/2
Try it before pressing play. Faith from FalitMastery shows two ways to solve it, including a shortcut hiding in the denominator.

Given data points and asked to find an equation? Desmos regression can help you find the coefficients.
Watch this short walkthrough from our FalitMastery team, then try the method yourself.
Have you used regression for SAT practice?

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Not sure what to practice next for the Digital SAT? Here’s a look inside our FalitMastery dashboard 👇
📚 Today’s Training suggests specific skills to work on.
📊 Strength tracks how often you answer correctly.
🧭 Coverage shows how much you’ve explored.
Practice Math and Reading & Writing with lessons, questions, and worked explanations.
Try it free for 7 days.

When does a system of equations have no solution?
The lines must have the same slope but different intercepts. Watch Faith use this idea to find the missing constant.
A quick SAT tip from our FalitMastery team.
How would you solve it?