Aused-boat dealership buys a boat for $2800 and then sells it for $4000. what is the percent increase?
i will make the brainlist

Step-by-step explanation:

percent increase = increase divided by original number x 100

increase is the difference between the two numbers...

new number - original number4000 - 2800 = 1200

percent increase = (1200 / 2800) x 100

                            = 0.42857 (round to .4286) x 100

                             = 42.86 %if you need it rounded to the nearest percent, it      would be 43% increase

c) yes, because of asa or aas

table 3 represents a direct variation function. : )