The total cost to deliver all the pieces of first-class mail can be calculated by multiplying the number of pieces (1.52×1010) by the cost of each stamp ($0.55).
So, the calculation is:
1.52×1010 × $0.55 = $8.36×109
Expressed in scientific notation, the total cost is $8.36×109.
In a given year, about 1.52×1010 pieces of first-class mail are delivered in the U.S. If each piece of mail carries a stamp costing $0.55, what is the total cost in dollars to deliver all the pieces? Write the answer in scientific notation, expressed to the exact decimal place.(1 point)
$
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