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The ph level of a blueberry is 3.1 what is the hydrogen-ion concentration [h+] for the blueberry

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.

700 miles the train takes 5 hours to a travel the distance at what unit rate is the train traveling?