Answer:
100% chance of this happening.
Step-by-step explanation:
The chances of this happening = 100% because all the numbers are greater than 0.
Answer:
A=a+b
2h
Step-by-step explanation:
Answer:
y=b-a/x
Step-by-step explanation:
yx+a=b
-a
yx=b-a/x
Answer:
38% probability that a randomly selected student is female or a physics major.
Step-by-step explanation:
A probability is the number of desired outcomes divided by the number of total outcomes.
Desired outcomes:
Physics majors or female
10 physics majors(of which 3 are female).
12 female(the 3 female physics majors have already been counted, so we count 9)

Total outcomes:
50 students, so 
Probability

38% probability that a randomly selected student is female or a physics major.
the expression has 3 terms.