Please help A rectangular prism has a length of 3 1/2 m, a width of 4 1/2 m, and a height of 2 m. Which expressions can be used to find the volume of the prism? SELECT EACH CORRECT ANSWER.

3 1/2 x 4 1/2 x 2
2 (3 1/2 + 4 1/2)
1/2 (15 3/4 x 2)
15 3/4 x 2

CORRECT ANSWER (would prefer explanation too) WILL GET BRAINLIEST.

Christine went shopping and bought each of her six six nephews a? gift, either a video costing? $14.95 or a cd costing? $16.88. she spent ? $ 97.42 97.42 on the gifts. how many videos and how many cds did she? buy?

Which of the following contains a variable?

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.