A supermarket gives a 10% discount on the marked prices of all items during the sale. Find the following marked prices:
1)the amount of discount given and
2)the sale prices: a)$45 b)$110

For a $45 purchase the discount would be $-4.5

the sales price $40.5

For a $110 purchase the discount is  $-11

The sales price $99

Step-by-step explanation:

To find the discount on an item first multiply the original cost of the item by the percentage discounted. in this case,

$45 × 0.10 = $4.5

$110 × 0.10 =$11

$4.5 and $11 are respective discount amounts

now simply subtract the amount of the discount from the original price

$110 - $11 = $99

$45 - $4.5 =  $40.5

These are your final sale prices after discount.

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