Answer:
I think have many options
If the sample is random, it is not valid.
The true statements are;
- fourteen eleventh graders prefer math and eight tenth graders prefer english.
- twenty-three ninth graders and thirty-five twelfth graders prefer math.
<h3>What is a survey?</h3>
In a survey, the opinions of the subjects are sought and these responses are recorded for the purpose of use in the process of decision making.
In this, case, we can see from the table that;
- fourteen eleventh graders prefer math and eight tenth graders prefer english.
- twenty-three ninth graders and thirty-five twelfth graders prefer math.
Learn more about survey:brainly.com/question/3944932
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Answer:
Step-by-step explanation:
To solve this problem, first you have to use the distributive property of 
.
First, expand.
Next, solve.
In conclusion, the correct answer is -15y-9.
