Elma

an escalator lifts people to the second floor, 25 ft above the first floor. the escalator rises at a 30 angle. How far does a person travel from the bottom to the top of the esalator?

1. Which elements are most abundant in living organisms? A. hydrogen, carbon, calcium, potassium, oxygen, and phosphorus B. oxygen, calcium, phosphorus, sodium, hydrogen, and carbon C. carbon, potassium, iron, magnesium, hydrogen, and nitrogen D. oxygen,...

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C C D B B

B A C C D

1. A. x=+3 2. D. no solution 3. C. x=0 4. B. x=+4 5. C. g=+5/2 6. B. b=+1/2 7. C. p=+12 8. A. z=+3 9. C. no solution 10. A. one solution

1 = C, mean = 9.3, median = 10, mode =13 2 = B, mean = 75.8 median= 76.5, mode =63 3 = B, mean = 18.3, median = 19, mode = 14, range = 9 4 = B, mean = 339.20, median = 318.00, mode = 445.20, range = 243.80