Hii! Does anyone know the answer to this? I’m bad at geometry and struggling to answer it. Thank you!

Which expression is equivalent to 2x^2+7x+4?

Aculture started with 2,000 bacteria. after 8 hours, it grew to 2,400 bacteria. predict how many bacteria will be present after 19 hours . round your answer to the nearest whole number. p=ae^kt

Determine if the outside temperature is a function of the time of day or if the time of day is a function of temperature and explain why or why not.