Answer:
cost to afford to bring these calculators is $8.4
markup on retail = 5.6
Explanation:
given data
selling price = $14
mark up on selling = 40% = 40/100 = 0.40
to find out
What cost can Mike afford to bring these calculators
solution
we calculate markup on retail that is mark up on selling of selling price
markup on retail = 0.40 × 14
markup on retail = 5.6
so
cost to afford to bring these calculators = 14 - 5.6
cost to afford to bring these calculators is $8.4