Suppose that r varies directly with s and inversely with t, and r=2 when s=3 and t=12. What is the value of r when s=5 and t=4?

I already know the answer but I'd like to know how to find it.

Equivalent form of 9/10

7x+39≥53 AND 16x+15>31

Which of these colonial American ideas came from the English Bill of Rights? 1. All citizens have basic rights. 2. Citizens can govern themselves 3. Government should have limited power 4. The press must be free

The population of a town increased from 5,400 to 6,000 people. What was the percent of the increase?

Which answer describes the function f (x) = 2x^3-x^2? A. even B. odd C. neither

The graph of f passes through (-10, 4) and is perpendicular to the line whose equation is x = - 4.

Jacob has 16 toy cars. 3/8 of the cars are red and the rest are blue. how many cars are blue

Sarah's Shipping and Ryan's Mail Services both ship packages. Sarah's trucks will only carry loads of 18 packages. In contrast, Ryan's trucks will only carry loads of 11 packages.

Which equation has a constant of proportionality equal to 15?

13, 967 round to the nearest 100