Answer:
m∠b=20°
m∠c=160°
Step-by-step explanation:
∠c and the 160° angle are vertical, so they are congruent.
∠c and ∠b are supplementary, so their sum is 180°.
So, m∠b=20°.
the common ratio is
1/3
because
9*1/3=3
3*1/3=1
1*1/3=1/3
...
$388.50
42 tins
$9.25/tin
So, they raised $388.50
Answer: -w(2w+7): -2w ^2 - 7w
x,y= -1,0
