Barbra brought 5 amusement park tickets at a cost for $30 if she bought 7 tickets, how much would it cost

Which expression is equivalent to 2x^2+2x-4/2x^2-4x+2

Ineed with number 17 i don’t get it at alll

Choose a second initial value that is 0.01 greater than the initial value from question 9. iterate it using the function, f, ten times. if necessary, you can round your results to the nearest ten-thousandth.