Answer:
Hence,
Selling price (S)= $ 105
Markup price (M)=$ 30
Explanation:
We have to find the markup and the selling price of the following item.
A typewriter costing $75.00 marked up 40% on cost.
i.e. cost price of typewriter=$ 75
Markup percent =40%.
i.e the markup is on the cost price.
Hence, the markup price is:
40% of cost price.

Hence, the markup price(M) is=$ 30.
Also selling price(S)= cost price+ Markup price
=75+30
=$ 105
Hence, the selling price(S) of the item is: $ 105
Hence,
Selling price (S)= $ 105
Markup price (M)=$ 30