Please help! its due by today! please!

The variable z is directly proportional to x, and inversely proportional to y. when x is 4 and y is 13, z has the value 1.2307692307692. what is the value of z when x= 9, and y= 20

Wow i want to vacation in mexico jeremih wow old vacation in mexico jeremiah we read read reads a distance marker that indicates he is 89 km from juarez if 1 mile approximately 1.61 km how far is jeremiah from juarez

Add the two expressions 4.6 x -3 + -5.3 x + 9