Ten times the sum of half a number x and 9 is 13.

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?

Fast! find the length of cu. the triangles are similar. show your work.

10x − 5y + 14 = 0 whats the answer pls