O = x, h=15 angle = 23
sin 23 = o/h
sin 23 x 15 = x
x=5.9 --> C
Rewriting the left-hand side as follows,

Answer:
Answer is the 72.02 cm³ .I hope it's helpful to you.
45 × 13 = 585
Which is exactly how much he'd need to pay back his sister and buy the bike. So, it would take him 13 weeks.