7. joanna has a list of her seven favorite movies and
she wants to watch them in a specific order. in
how many different ways can she choose to watch
the movies?
a. 5040
c. 49
b. 120
d. 7

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.