9x40= 360
9x30= 270 so the common factor is 9 I have no idea about the exponent stuff
Answer:
fffgfdfgee
Step-by-step explanation:
Answer:
yes
Step-by-step explanation:
39 is <span>312% </span>of 12.5
To find this you just divide 12.5 into 39 which gives you 3.12. To change that to a percentage you multiply by 100 which gives you 312%
7.5 is <span>102% </span>of 7.38
To find this you just divide 7.38 into 7.5 which gives you 1.0162, which I rounded to 1.02. To change that to a percentage you multiply by 100 which gives you 102%
I hope this helped! :)
Answer:

Step-by-step explanation:
Given,
Art electives = 3,
History electives = 4,
Computer electives = 5,
Total number of electives = 3 + 4 + 5 = 12,
Since, if a student chooses an art elective and a history elective,
So, the total combination of choosing an art elective and a history elective = 
Also, the total combination of choosing any 2 subjects out of 12 subjects = 
Hence, the probability that a student chooses an art elective and a history elective = 

Which is the required expression.