Angle B = 68 degrees
Using the Law of Sines
b / sin(B) = c / sin (C)
b = sin (68) * c / sin (49)
b = 0.92718 * 3 / 0.75471
b =
<span>
<span>
<span>
2.78154
</span>
</span>
</span>
/ 0.75471
<span>
<span>
<span>
b = 3.6855745916
</span></span></span>
23-11=12
She spent $12 on notebooks, and she bought six notebooks.
12/6=2
Each notebook costed $2.
Answer:
10*10=100
50*2=100
5*20-100
Step-by-step explanation: