A banquet hall charged $12000 for an event that 250 people attended. if the hall has a flat fee of $4000 for an event plus a charge per person attending, what is the charge per person?

Imagine a new pasture with grass growing on it. every day after the seeds have germinated, the number of blades of grass in the pasture triples. after 18 days, the entire pasture is completely covered in grass. how many days did it take for the pasture to be one-third covered in grass?

An arc subtends a central angle measuring 7pi/4 radians what fraction of the circumference is this arc?

Ineed me i stuck and i don’t want to get it wrong