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Mathematics, 06.12.2019 23:31 yurybell

Lara has four packages of baseball cards. the first package has seventeen cards. the second package has twenty-one cards. the third package has twenty-two cards, and the fourth package has sixteen cards. using front end estimation what is the best estimate for the total number of baseball cards she has?

a.

90

b.

80

c.

70

d.

60

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