Answer:
2 is the opposite of-2 and -2 is the opposite of 2
 
        
             
        
        
        
Answer:
y/x = 2.5
Step-by-step explanation:
y ∝ x
change ∝ to = by adding constant k or c
y = kx
Divide both sides by x
y/x = k, also k = y/x
Input the values
k = (7 1/2)/3.  Change 7 1/2 to improper fraction to give 15/2
k = (15/2)/3
k =  ÷ 3
 ÷ 3   
Change the division sign to multiplication which will change 3 to its inverse(1/3)
k =  ×
 × 
k = 
Divide the numerator and denominator by 3 to get 5/2
k = 5/2
From y/x = k,input k into the eqn
y/x = 5/2
y/x = 2.5
 
        
             
        
        
        
The first bubble is the answer
        
                    
             
        
        
        
Answer:
7
Step-by-step explanation:
time=<u>interest</u>
            P*R
time=<u>1386*</u>100
    6.6 * 3000
<u>time=7</u>
 
        
             
        
        
        
Answer: £5
Step-by-step explanation:
Bole sold the article for 125% while he bought it for 100%. 
Bole sold for £7.50 so £7.50=125%
£7.50/1.25=£6 
125%/1.25=100%
£6=100% (the cost Bole bought the article with from Iluguru)
Iluguru sold it at 120% so 120% is £6 
To find 100% we divide by 1.2
£6/1.2=£5 
Iluguru bought article for £5 originally