Answer:
Yes
Step-by-step explanation:
s<30
Put in 28 for s
28<30
Twenty eight is less than 30 so it is a solution
 
        
             
        
        
        
Answer:
1995, because you were paying $1.96 for 1 CPi, now you are paying around $1.16
Step-by-step explanation:
 
        
                    
             
        
        
        
Answer:
2=70 ,4=42, 6=75
Step-by-step explanation:
Subtract each number by 90 to find the missing complementary angle.
 
        
             
        
        
        
Answer:
3/5
Step-by-step explanation:
There are 20 balls, numbered 1 through 20.
Of these, 10 are even, 4 are less than five, and 2 are both even and less than 5.
So the probability is:
P(even or <5) = P(even) + P(<5) − P(even and <5)
P(even or <5) = 10/20 + 4/20 − 2/20
P(even or <5) = 12/20
P(even or <5) = 3/5
 
        
             
        
        
        
One value: would be a single valued function, or just one answer.
Real numbers would be: natural numbers, whole numbers, integers, rational numbers (fractions and repeating or terminating decimals), and irrational numbers. 
No solution: there is no answer to the question.