It took a breath every
30 seconds.
Assuming that the breath instantly gives enough air, and then the manatee goes right back under, then the manatee goes under every;
Thus, the manatee holds its breath for
30 seconds.
Answer:
2x = 54, 3x = 81
Step-by-step explanation:
135 degrees = 2x + 3x
5x = 135
x = 27
2x = 54
3x = 81
The slope of the line = 1/2