Answer:
weeks
Step-by-step explanation:
Given
It takes 14 weeks to empty a lake
also it takes 20 weeks for a river to fill the lake
Part of lake empty in 1 week 
Part of lake filled in 1 week is 
And if both works simultaneously then


therefore it takes
weeks to fill it
Answer:
332519000 in scientific notation is 3.32519 x 10^8
Step-by-step explanation:
Hope that helped
Answer:
A
Step-by-step explanation:
Yes because all equilateral triangles have equal angles and side lengths so they are all similar. hope i helped -J