Answer:
the highest it can go its 4,256
Step-by-step explanation:
17.94
Because 15% of $6 is .9 so
2.6x6.9=17.94
X : number of tacos they sell per day. ...... profit = y = 3.25 × x - 210 ......inequality. y > 0. so. x > 210/3.25 = 840/13 = 64. ......so the taco stand must sell at least 65 tacos for making profit.
If you're asking for the model for the second problem (I didn't see any unsolved), here it is!