Step-by-step explanation:
Let x be the number of designer T shirts.
To break even,
Total Cost = Total Sales
Fixed Cost + Variable Cost = Total Sales
given the promotional advertising is classified under fixed cost,

Answer:
300
Step-by-step explanation:
Answer:
4.2 laps
Step-by-step explanation:
because 4 laps is 1600+ the 80 which is a 1/5 of 400 causing it to be .2
Answer:
add the 2 equations together
Step-by-step explanation:
i was in class when I heard this so it should be correct
Six hundred thousand ,+ Eighty thousand ,+ ten.