B, C, and D are the correct answers
Answer:
5
Step-by-step explanation:
7x plus 15 is 50
7x=35
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Answer:66.3
Step-by-step explanation: you multiply 12.5 times 5.3 and the round to the nearest tenth
Answer:
C
Step-by-step explanation:
First we find the z-score.
z = (x - μ) / σ
z = (520 - 500) / 60
z = 0.33
Using a calculator or z-score table:
P(z < 0.33) = 0.6293
The probability is approximately 63%. Answer C
