3 years ago

4.

Mathematics

1 answer:

Dmitrij [34]3 years ago

5 0

Answer:

Step-by-step explanation:

a) 1 + 2 + 3 .... + 7 = 8*(3.5) = $28

b) $0.01

$0.02

$0.04

$0.08

$0.16

$0.32

$0.64

sum = $1.27

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