Answer:

Step-by-step explanation:
Answer:
∠6=58°
Step-by-step explanation:
∠3=∠6=58°
Answer:
187.5 gallons
Step-by-step explanation:
Make a proportion
= 
3000/16 = 187.5, so multiply 1 by 187.5 to find the gallons used in a year
This gets you 187.5 gallons used in a year