Answer:
ab - ac + db - dc
Step-by-step explanation:
you distribute the variables inside the parenthesis 
 
        
             
        
        
        
<span>you need to find the amount of years between now and when she wants to buy a home. 36-18= 18. then you take 18 and multiply is by %6. 18x%6 or 18x.06 =108% or 1.08. 
The discount prices for today's housing values compared to 18 years from now with a 6% increase per year would be 108% discount. </span>
        
             
        
        
        
solve this answer by using substitution. set the first equation to x=-y+4 then substitute -y+4 for x in the second equation.
2(-y+4) + 3y=0
-2y+8 + 3y=0
y+8=0
y=-8
now use -8 and solve for x
x+(-8)=4
x=12
 
        
             
        
        
        
Answer:
x=13
y=132
Step-by-step explanation:
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Step-by-step explanation:
7:8:9=<u>10.5</u>:12:<u>1</u><u>3</u><u>.</u><u>5</u>.
hope this helps you.