The second one is correct
The last one 7(30)-7(7) because if you do it then it is 7(23) which doesn’t make sense because it is 27 we need to find
The polynomial function of lowest degree with lead coefficient 1 and roots 1 and 1 + i is f(x) = x3 - 3x2 + 4x - 2.
Wouldn't the total cost be the cost of the amp? Which is 229.99$
Doesn't matter how he paid it - he still had to pay that total amount
Answer: x=-6
1. simplify both sides of equation
2. divide both sides by -2