Carolina receives an allowance that is tied to completing her chores during the week. she starts off with an allowance of $20. she has five chores to complete during the week, and for each chore she completes, she receives $3. however, for each chore that is not done by the end of the week, she loses $4 from her allowance.
a. write an expression describing carolina's allowance as a function of the number of chores, c, that she completes during the week.
b. if carolina completes 4 chores, what is her allowance?