Which two operations can you perform on the powers from the table you created in question 1, part C, to get the answer to question 2, part A?

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.

Given the expression (7 ? 4i) ? (2 + 6i), perform the indicated operation and write the answer in the form a + bi.

Is experimental probibilty the same as the observed frequency in math? i need the answer asap!