Area means to multiply, so 9.3x16.5=153.4 cm.
        
             
        
        
        
So to add fractions they need to have a common denominator, which in this case is 24. then multiply 1 by 4 and 5 by 3 because whatever you multiply the denominator by you need to do the same to the numerator, which will get you 4/24+15/24 then you add across the numerators and you get 19/24
        
             
        
        
        
Answer:
1261.68
Step-by-step explanation:
1350 = the increased watch price= 107% of the original
1350= 1.07x
1261.68224299 
Check: 
7% of 1261.68224299 is 88.317757
1261.68224299 + 88.317757 = 1349.9 = 1350
Round: 
1261.68224299  
To the penny= to the hundreth= 1261.68
 
        
             
        
        
        
Answer: $95
Step-by-step explanation:
Te new price will be 90 + 5x, if the price increases "x" times
The number of wind chimes sold per month will become 140 - 7x

Therefore, if the price becomes (90 + 5(1)) = $95 per wind chime, then the revenue will be maximum
 
        
             
        
        
        
Answer:
The answer to your question is:       (2a + 2b)²
Step-by-step explanation:
a² + b² = z
ab = y
Which is equivalent to 4z + 8y ?
Substitution 
                                      4(a² + b²) + 8(ab) 
Simplify                        4a² + 4b² + 8ab
Order                            4a² + 8ab + 4b²       It's a perfect square trynomial
Factorize                     (2a + 2b)²