Garcian decides to sell his extra tomato seedlings at the farmers' market. The cost ot rent a booth at the farmers'
market is $15. Soil, seeds, and containers cost an additional
$42. The equation shows the amount of profit (y) he makes
for selling x tomato plantes.
y = 2.5x - 57
If Garcian makes a profit of $143, how many plants does he
sell?