I think the answer is B. but I'm not sure... Sorry if this doesn't help!
Answer:
if i had to answer the only one that evan came close woulb be b and d
Step-by-step explanation:
The answer is 100.
You start by making a formula:
.80(x) = 80,
As we know the discount is 20% off, which makes the price actually 80% of what it originally was. Convert percent to a decimal gets you that .80
Reverse the process — 80/0.80 = 100
To make sure we don't have negatives under the square root, we specify that

(x is greater than or equal to 0). We'll use this fact later on
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Start with the given inequality

and square both sides to get

. Couple this with the fact that

means we have this compound inequality

What does this mean? It means that we can pick any value from 0 to 49 (including both endpoints) and it will be a solution to the inequality. This applies to the values
49, 48 and 44Answers: Choice C, Choice D, Choice E