Answer:
Step-by-step explanation:
Answer:
∠ABC= 45°
Step-by-step explanation:
∠ABC= ∠BCD (alt. ∠s, AB//CD)
(2x +15)°= (3x)°
2x +15= 3x
3x-2x= 15 <em>(</em><em>-2x </em><em>on </em><em>both </em><em>sides)</em>
x= 15
Substituting the value of x:
∠ABC
= ∠BCD
= [3(15)]°
= 45°
6%
to find the percentage you divide 10.80$ by 180$ and get 0.06
0.06 is 6% in decimal form
therefore there was 6% sales tax (sales tax is usually 6-8% so this makes sense anyway)
