Answer: The number of doughnuts that Teresa has, y, is 2 times the number of doughnuts Thomas has, x.
Step-by-step explanation: If Teresa had 10 doughnuts, Thomas would have 5, and if Thomas had 10 doughnuts, Teresa would have 20.
 
        
             
        
        
        
Answer:
Step-by-step explanation:
For independent events,
P(AB)=P(A)orP(B)
 = P(A)uP(B)
 =P(A)×P(B)
 = 0.55×0.72
P(AB)=0.396
 
        
             
        
        
        
Set up a proportion
75/100= 9 baskets/ x attempts
The ratio of numerator to denominator should be 75/100 which simplifies to 3/4. 3/4= 9/x
3*3=9, 4*3=12
x=12
Final answer: 12 attempts
        
             
        
        
        
Answer:
- 2x - 31
Step-by-step explanation:
Given
- 3(4x + 5) - 2(- 5x + 8)
Multiply the terms in the first parenthesis by - 3 and the terms in the second parenthesis by - 2
= - 12x - 15 + 10x - 16 ← collect like terms
= (- 12x + 10x) + (- 15 - 16)
= - 2x - 31
 
        
             
        
        
        
136×25%=136×25/100= 3 400/100=34
so the markeup value is
136+34= 170
170×17%=170×17/100=2 890/100=28.9
170-28.9=141.1 
Selling price=136+170=306