Answer:
You included no options so I will list some of the various fractions and decimal that are equivalent to the fraction of days it was cloudy in April.
In fraction form, the value can be simplified to;
In decimal form, the value would be;
= 12 ÷ 30
= 0.4
It would just be y=3600 I believe. Don’t overthink it bud
For the given vectors
and 
The dot product of vectors a and b is defined as = 
So, 

= -16+12
= -4
The answer that I got was 27, hope it helps