The variable z is directly proportional to x, and inversely proportional to y. when x is 12 and y is 18, z has the value 2.

what is the value of z when x = 19, and y = 22

Omar is going on a road trip! the car rental company offers him two types of cars. each car has a fixed price, but he also needs to consider the cost of fuel. the first car costs $90 to rent, and because of its fuel consumption rate, there's an additional cost of s0.50 per kilometer driven.

Acircle has a radius of 5/6 units and is centered at (3.6, 7.8) write the equation of this circle

What does x = in this equation x+3+2x=x+5