If y+1/y=5 then show that (y^3+1/y^3)=110

Which triangles area would be calculated using the trigonometric area formula

Can someone me and plz do the problem

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.