Question 4
Answer: Choice A) 3/10
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Step-by-step explanation:
There are 5 green, 9 red, and 6 blue. That makes 5+9+6 = 20 total marbles. Of this total, 6 are blue. The probability of picking blue is 6/20 = 3/10
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Question 5
Answer: Choice C) x < 6
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Step-by-step explanation:
The open hole at 6 means we do not include this value as part of the shaded solution set. So we either have "less than" or "greater than".
We go with "less than" since the shaded region is to the left. This describes all values smaller than 6.
If you had "or equal to" as part of the inequality, then you would have a filled in circle at the endpoint.