Which of the following best represents the relationship between functions f and g? g (x)= -f (x) + 1

Ineed to know the answer to this algebra question.

How much orange juice do you need to make 2 servings of lemony orange slush?

Asmall business produces and sells balls. the fixed costs are $20 and each ball costs $4.32 to produce. each ball sells for $8.32. write the equations for the total cost, c, and the revenue, r, then use the graphing method to determine how many balls must be sold to break even.