Estimate the mean exam score for the 50 students in Prof. Burke's class. Score

f

40 but less than 50

21

50 but less than 60

39

60 but less than 70

40

70 but less than 80

34

80 but less than 90

28

Total

162

Group of answer choices

65.56

63.78

64.89

62.34

Imogene invested $8,000 in a bank account that pays 8 percent simple interest at the end of each year. her friend invested the same amount in stocks where the growth of the investment is represented as 2,000 times the square root of 2 less than the time lapsed in years. if y1 and y2 represent the amount earned in dollars and t is the time lapsed in years, which system of equations correctly represents the situation?

Seymour is twice as old as cassandra. if 16 is added to cassandra’s age and 16 is subtracted from seymour’s age, their ages become equal. what are their present ages? show !

Why is studying fractions important