90 students were surveyed about their favorite subject in school between Math and Social Studies. How many students chose only m
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Answer: Choice A
The number line graph is visually showing every number that is 19 or smaller; hence
Note the use of a closed or filled in circle at the endpoint (in contrast to an open circle). This indicates we are including the endpoint 19 as part of the solution set, and that's why we go for "or equal to" as part of the inequality sign.
If , then
. You replace all x's in the function with -3.
Finish by evaluating the absolute value and then adding that to the 5 that's behind the absolute value.
Can you finish it from there?