Whats the value of x?

This is fractions casey shared a pizza with some friends.they each ate 1 third of the pizza. how many people shared the pizza

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 value of x in the equation 1.5x+4-3=4.5(x-2)?