Answer:
Step-by-step explanation:
The power of a power rule is when power is raised to another power. (x^n)^m.  when you do this rule, you must multiply the exponents so, x^nm or x^n*m.
The product rule for exponents is used when there are multiple terms that are raised by an exponent that have the same base and ae being multiplied. x^3 * x^2. To solve this, you keep the base (x) and add the two exponents together (3 and 2) so, x^3+2 = x^5.
Hope this helped (:
 
        
             
        
        
        
A because (-5)^2 = 25 + 2(5) =35-1=34
        
                    
             
        
        
        
So discount means taken off
we find 15% of 199 and subtract from 199
% means parts out of 100 so 15%=15/100=1.5/10=.15/1=0.15
'of' means multiply 
15% of 199=0.15 times 199=29.85
discount so 199-29.85=169.15
answer is $169.15
        
                    
             
        
        
        
66.5cm 
Split the shape into a square and triangle and find the area separately 
Square: 8*7=57
Triangle: 7*3/2 = 10.5
=66.5