If f(x)=2x+5, then what is f(3)?

What is the value of 1/3x + 7x when x = 5

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?

What is the location of point g, which partitions the directed line segment from d to f into a 5: 4 ratio? –1 0 2 3