Answer:

Based on this, we know the correct number line will be an empty bubble with a line going to the right of 4.
Step-by-step explanation:

add 8 to both sides of the inequality

Answer:
±2√21.
Step-by-step explanation:
First, you break 84 down into √4⋅√21.
That is equal to ±2√21.
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Answer:
(-1,0) and (5,0)
Step-by-step explanation:
$3.30 because taking the cost of 24, which is $7.20, and dividing is by the amount, 24, you get that one Blow-Pop costs $0.30. Then to find how many 11 costs you just need to multiply $0.30 by 11, and you get $3.30.