Step-by-step explanation:
do 3 X 40
then do 2 X 50
add them
divide by how many hours
In 8 weeks the reef grows 13 m, or 104 m.
Converting 104 m into mm:
104 m 1000 mm
--------- * ------------- = 104,000 mm
1 1 m
Regular polygon is a polygon with equal sides and equal angles!!!
Answer: D The answer is On this website if you need a more in depth explanation