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IM BEING TIMED HELPP!!!!!!

Jada is buying 4 stamps that cost $0.49 each. How can rounding be used to estimate the total cost of the stamps? Since each stamp is about $0.50, the total cost is approximately 4 +0.5 = $4.50. 0 Since she is buying about 10 stamps, the total cost is approximately 10 × 0.49 = $4.90. Since each stamp is about $0.50, the total cost is approximately 4 x 0.5 = $2.00. O Since she is buying about 10 stamps, the total cost is approximately 10 + 0.49 = $10.49.​

IM BEING TIMED HELPP!!!!!! Jada is buying 4 stamps that cost $0.49 each. How can rounding-example-1
User Johnny Woo
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Answer:

ummm maybe $4.90, i don't really know how to incorporate rounding in this

User Zmaster
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