-151/120x -1 or 1\120 × (-151x -120)
 
        
             
        
        
        
This photo will show you how to do it and the answer so your welcome
 
        
        
        
Answer:
4/27 
Step-by-step explanation:
You just add 4/9 + 1/3 = 4/27 and I believe there is no way to simplify.
 
        
             
        
        
        
A. W = L - 10
b. P = 2(L + L - 10)
    P = 2(2L - 10)
    P = 4L - 20
c. solve 
     P = 4L - 20
 244 = 4L - 20
244 + 20 = 4L
264 = 4L
264 / 4 = L
66 = L or L = 66
Length of the rectangle = 66  mm
d. 
W = L - 10
W = 66 - 10
W = 56
Width of rectangle  = 56 mm
        
             
        
        
        
To find area of a right prism the equation is Bh 
where B is area of the base of the triangle and h is the height
to find area of the base for this is 1/2b *hight of the triangle or .5*6*5=12.5
the height is 10
12.5*10=25