What is the simplest form of 19/100?

9/10 divide by -3/15 as a mixed number

15m is what percent of 60m; 3m; 30m; 1.5 km? the last one is km not m

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?