What is the x-intercept of the equation: y = 3x - 9 Hint: Graph it and see where it crosses the x-axis

help me please will give you 20 points

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?

You dug a hole that was 8 feet deep. after taking a short break, you dug down 3 more feet in the same hole. when finished digging, a tractor accidentally filled the hole with 4 feet of dirt. how deep is your hole now?

An ant travels at a constant rate of 30cm every 2 minutes.at what speed does the ant travel per minute