Use the definition, identities, and properties of imaginary numbers to simplify each of the following expressions. Match each item with its correct simplest form. 1. - i6 · i3 · i-5
2. ( i3) 5
3. ( i5 · i-2 · i8) 0
4. -( i4) ( i0) ( i7)

match them to

1
-1
i
-i

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.