Please help me out on this test please

Can someone pls ! pls answer all. no explanation needed..

Show your workcan a right triangle have this sides? *how to prove it without using the pythagorean theorema*

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.