D=dimes
q=quarters
d + q = 20
.10d + .25q = 3.05
d=-q + 20
.10(-q + 20) +.25q = 3.05
-.10q + 2 + .25 = 3.05
.15q + 2 = 3.05
.15q + 2 - 2 = 3.05 - 2
.15q = 1.05
.15q/.15 = 1.05/.15
q = 7
d + 7 = 20
d + 7 - 7 = 20 - 7
d = 13
Sally has 7 quarters and 13 dimes.
Hope this helps!
        
             
        
        
        
yes because 5 times pi jis just basically a decimal times a whole number and pi is never ending
 
        
             
        
        
        
Answer:
angle 1 IS the given angle
angle 2 is 180 minus the given angle
Step-by-step explanation:
dont believe me? get out a ruler
 
        
                    
             
        
        
        
Answer:
y=3x+7
Step-by-step explanation:
take two points, (1,13) (2,19)
subtract using slope formula 
19-13 2-1= 6/1 -> 6-> 3
find your y intercept (b) by using the first term in the 7 row (7)
 
        
                    
             
        
        
        
4 seeds, 5c is equivalent to -5 then add 9= 4. Hope this helps!!