How do i create an equivalent expression that includes parentheses so that the value of the expression is 2 for 3+8-4x2-12

Which statement accurately explains whether a reflection over the x-axis and a 180° rotation would map figure acb onto itself?

Arestaurant gives out a scratch-off card to every customer. the probability that a customer will win a prize from a scratch-off card is 25%. design and conduct a simulation using random numbers to find the experimental probability that a customer will need more than 3 cards in order to win a prize. justify the model for your simulation, and conduct at least 10 trials.

[10 points, algebra 2-simplifying complex fractions]according to my answer key the restrictions are -1 and 4. but why not positive 1?