5+10=15
or 1+1+1+1+1+1+1+1+1+1+1+1+1+1+1
Let's consider that 23.5 is 100% of rainfall.
23.5 ..... 100 %
21.2 ..... x %
Calculate x:

, which is around 90.2%.
The percent of decrease is 100 - 90.2 = 9.8 %.
Answer:
b
Step-by-step explanation:
Answer:
75720cm or 757.2m
Step-by-step explanation:
300m = 30000cm
78m & 60cm=7860cm
perimeter of rectangle = 2(length) + 2(width)
2(30000) + 2(7860) = 75720cm or 757.2m
4/5 = 8/10 = 12/15 = 16/20 = 20/25
Hope it helps