Answer:
19 to 12 is the answer
Step-by-step explanation:
There are 19 boys, and 19+12=31 total number of students, therefore, the probability you are asking for is P=19/31.
The temperature needs to rise <u>1.5</u> degree C to reach 0 degree C.
-1.5+<u>1.5</u>=0
92°
By exterior angle theorem:
Es 60