Mathematics

Mathematics, 10.11.2020 02:20, potato3999

Ms. Thayer bought 6 items for her physics class at a mean cost of $8.40 per item. When she added a dial caliper for $46.50 to her purchases, the new mean for all 7 items became about A. $16.15
B. $7.84
C. $13.84
D. $54.90
E. $27.45

Explain your thinking.

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