Calculate the values of the Expressions below 3 * 8 divided by 2 squared + 1

What is sin 7x/4 ? i need on this urgent trig

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.

Decide whether the rates are equivalent. 96 miles on 4 gallons, 380 miles on 15 gallons