math
posted by Completely lost?! .
A company that makes thingamabobs has a start up cost of $ 1399. It costs the company $ 1.87 to make each thingamabob. The company charges $ 5.89 for each thingamabob. Let x denote the number of thingamabobs produced.
1. Write the cost function for this company. C(x) =2052
work1399+(1.87*349)
2. Write the revenue function for this company. R(x) =2056
work 5.89*349
3. What is the minumum number of thingamabobs that the company must produce and sell to make a profit? = 349
I got part 3 right but no part 1&2 what did i do wrong?

1. 1399 + 1.87x
2. 5.89x
3. 589x  (1399 + 1.87x) > 0
You did not follow the last sentence of the instructions.
I hope this helps. Thanks for asking.