Write the equation of a parabola with the focus at (3,0) and the directrix at x=-3 The answer is y^2 = 12x

Hector and alex traded video games. alex gave hector one fourth of his video games in exchange for 6 video games. then he sold 3 video games and gave 2 video games to his brother. alex ended up with 16 video games. how many video games did alex have when he started?

Aculture started with 4,000 bacteria. after 5 hours, it grew to 5,200 bacteria. predict how many bacteria will be present after 19 hours. round your answer to the nearest whole number.

Need plz been trying to do it for a long time and still haven’t succeeded