Using the congruency statement select which statements are true

Which of the following parabolas opens down?

Sandy is upgrading her internet service. fast internet charges $20 for installation and $52.45 per month. quick internet has free installation but charges $57.45 per month. part 1 out of 2 complete the equation that can be used to find the number of months after which the internet service would cost the same. use the variable x to represent the number of months of internet service purchased.

Which is the best estimate of the product of 0.9 x 0.88? 0 0.25 0.5 1