Can you suggest a quick method to solve College Board Practice Test 5 Math Section 3 #14?

Can you suggest a quick method to solve College Board Practice Test 5 Math Section 3 #14? I plugged in easy numbers for x in order to eliminate answer choices (first x=1, then x=0), but wonder if there is a more direct way to solve.

Test 5 Section 3 #13

Hi. Would it be possible for you to explain #13 on SAT practice test 5 on calculator inactive (the tea bag problem)? I think the main reason I found it confusing was the wording, and the SAT explanation for the answer was also a little bit wordy.
Thanks

Test 5 Section 3 # 16

Hello! Could you please explain how to answer Question #16 from Section #3 from official practice SAT test #5? Thank you in advance!

Practice test 5, Section 3, Prob 15: How would you think through this problem to get the right answer?

Practice test 5, Section 3, Prob 15: How would you think through this problem to get the right answer?

would you please explain #12 in test 5, section 3.

would you please explain #12 in test 5, section 3.

What’s the fastest way to do test 5 #18 in the no calculator section?

What’s the fastest way to do test 5 #18 in the no calculator section?

Can you please do #20 from the no calculator section in test 5?

Can you please do #20 from the no calculator section in test 5?

Can you do Test 5 number 19 from the no calculator section?

Can you do Test 5 number 19 from the no calculator section?

What is the fastest way to do test 5 #14 from the no calculator section?

What is the fastest way to do test 5 #14 from the no calculator section?