How many books has she read so far? She's been doing this for 7 months, so so far she's read: 
7*3=21
how many does she still need to read? 
30-21=9
so she needs to read 9 more books. With 3 books a month, this means: 
9/3=3
so she needs to read 9 more books, which will take her 3 months!
        
             
        
        
        
Answer:
y= 288x + 7.99
Step-by-step explanation:
# of tickets : x
y = 289x + 7.99
 ⬇️ _________ put in y = mx + b
y = 289(6) + 7.99
 ⬇️ _________ plug in 
y = 1734 + 7.99
 ⬇️ _________ Add
y = 1741.99
HOPE THIS HELPS!  (:
 
        
             
        
        
        
How to solve:

 - 

Write all numerators above the least common denominator which is 24 in this case.

Subtract the numbers

Alternate form: 0.458333
The final, simplified, fraction answer is: 
 
 
        
        
        
Answer:
 x     y
-2      0.111
-1       0.333
0         1
1         3
2          9          
Step-by-step explanation:
 
        
             
        
        
        
Answer:
(-3,3)
Step-by-step explanation:
Using elimination: 
Multiply the first equation by 8 and the second by 5 which equals
40x+56y=48
-40-60y=-60
Now you add them together
40x+(-40x)=0 so that crosses out
56y+(-60y)= -4y
48+(-60)=-12
You now have -4y=-12
Divide by -4
y=3
Now plug in y to any of the equations
5x+7(3)=6
5x+21=6
Subtract 21 from both sides 
5x=-15
Divide by 5
x=-3
Your final solution is (-3,3)