Yes...the person's hypothesis could be correct.
Answer:
326m²
Step-by-step explanation:
Find the area of each side and find the total sum from each individual area:
2(15*4)+2(7*4)+2(7*15)=2(60)+2(28)+2(105)=2(163)=326
So the surface area of the prism is 326m²
You could buy 135 MP3 songs.
($304.25 - $149 = $155.25 | $155.25 / 1.15 = 135)