Please y'all I really need help finding out x I don't have a lot of points left.

Solve for n? [tex]z = \frac{3}{4} mn[/tex]

Two variables, x and y, vary inversely, and x=12 when y=4. what is the value of y when x=3?

Problem situation: caren is making rice and beans. she can spend no more than $10 on ingredients. she buys one bag of rice for $4.99. beans cost $0.74 per pound. how many pounds of beans, x, can she buy? inequality that represents this situation: 10≥4.99+0.74x drag each number to show if it is a solution to both the inequality and the problem situation, to the inequality only, or if it is not a solution.