For the answer to the question above asking w<span>hich of the following inequalities represents the possible combinations of reviews and new written pieces that she must complete?
You must look at the keyword "at least"
The answer is </span><span>a. 80x+40y>=800</span>
Answer:
C. 4 is the right answer!
Step-by-step explanation:
X = excellent condition books
y = fair condition books
2.50x + 0.50y <== ur expression

Since approximately 68% of a (roughly) normal distribution falls within one standard deviation of the mean, that leaves 32% that falls outside, and by symmetry 16% should lie above one standard deviation of the mean.