At a school, 40% of the sixth-grade students said that hip-hop is their favorite kind of music. Only 5% liked Baby Shark the best. 100 sixth-grade students prefer hip hop music. How many 6th grade students are there at the school?

Ms.ortiz sells tomatoes wholesale. the function p(x)=-80x^2+320x-10, graphed below, indicates how much profit she makes on a load of tomatoes if she makes on a load of tomatoes if she sells them for 4-x dollars per kilogram. what should ms.ortiz charge per kilogram of tomatoes to make on a load of tomatoes?