Answer:
A straight angle measures 180°. ... An angle can be measured using a protractor, and the angle of measure 90 degrees is called a right angle. In a right angle, the two arms are perpendicular to each other. When the right angle is divided into two equal parts each angle measures 45°.
Are there choices? If there are choices what are they?
Atlantic Ocean
Near the Azores (islands)
1,100 miles from Lisbon
1,300 miles from Casablanca
2,100 miles from Boston
Answer:
, 
Explanation:
The total water level lost due to evaporation is directly proportional to the number of day. That is:

Where
is the proportionality constant, which is equal to
. The expression is:

And the total change in water level after 30 days is:

