[3 pts]Suppose that new copies cost $100 and used copies cost $70. Assume the bookstorecurrently has 50 new copies and 50 used copies. What is the expected value of total revenuefrom the sale of the next 25 copies purchased

$1,975

Explanation:

Given:

Cost of new copy = $100

Cost of used copy = $70

Total sales = 25 Copies

Note: Given question is incomplete, missing information is given below:

30% students want new copies,whereas 70% students wants used copies.

Computation of sale of new copies:

Total new copies = 25 × 30%

Total new copies = 7.5

Computation of sale of used copies:

Total used copies = 25 × 70%

Total used copies = 17.5

Computation of total revenue from sales:

Total revenue from sales = ($100 × Total new copies) + ($70 × Total used copies)

Total revenue from sales = ($100 × 7.5) + ($70 × 17.5)

Total revenue from sales = ($750) + ($1,225)

Total revenue from sales = $1,975

the page presents four different kinds of threats that volcanoes pose and what to do before, during, and after an eruption.

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