To get these answers, you must use the p(x) table. When x=2, p(x)=6. So you would substitute p(x) for 6 and solve. That would be what you would do for the rest of teh problems.
For #12, the answer would be 5x^2+15x+5
Just mutiply the areas of the out side and inside and subtract them
60.50 is not the correct answer. The correct answer is $30.50. To get the correct answer multiply 2X13, which is 26. Then add 4.50 cents to the 26, which gets you 30.50.