Answer:
2x-8
Step-by-step explanation:
From the question the meaning of the expression is
Let the number be x
2x - 8
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300÷60 = 5
5 hours of commercials was watched
For part A add up all your students then add up all your students that like bike riding and skating (80+90) divide that by the total number of students who took the survey
For Part be put 20+40 over the toatl number of student then simplify
