Answer:
3/7
Step-by-step explanation:
P(red) = number of red pens / total number of pens
          = 3/7
 
        
                    
             
        
        
        
Answer:
288 minutes
Step-by-step explanation:
 
        
                    
             
        
        
        
Answer:
a) 4
b) 2
Step-by-step explanation:
a) multiply the coefficients and add the exponents
(4)(1) ·  = 4
 = 4
b) divide the coefficients and subtract the exponents
(14 ÷ 7) ·  = 2
 = 2
 
        
             
        
        
        
Answer:
2/10 * 2/10 = 1/25
Step-by-step explanation:
Suppose you have 10 marbles in a bag.
5 black , 2 pink and 3 blue
As if two pink marbles are selected then
for one pink marble
probability = event occurred / total outcomes
                  = 2/10
Similar probability for an other pink marbles
Probability for the drawing two pink marbles is
P = 2/10 * 2/10
  = 1/25