Step-by-step explanation:
- 1a.2.
- b.1/2 base×height
- c.2 ×1/2 base×height
- base×height
b.
- 1m=100cm
- 1m²=100cm×100cm
- 1m²=10000cm²
- 0.25m²=0.25×10000cm²
- 0.25m²=2500cm²
C.
- .3
- .area of rectangle button+area of back+area of top 
- d.total surface area =base×height+area of rectangle button+area of back+area of top
 
        
             
        
        
        
Answer: -3
Step-by-step explanation:
If you plug in the numbers, the equation would look like: 2+2(-2.5)
Multiply 2 by -2.5 and you'll get -5 as your product. Add 2 and -5 together to get the sum of -3. 
 
        
                    
             
        
        
        
Answer:
E' (-2,5)
F' (-3,1)
G' (-2,-1)
H' (0,3)
Step-by-step explanation:
The rule for 90 degree clockwise rotation is (h,k) -> (k,-h). This means flip the x-value's sign and then switch x and y's position. For example E (-5,-2), first flip x's sign (5,-2) and then switch x and y's places (-2,5).
 
        
             
        
        
        
7 is the answer because de is parallel to xy.
        
             
        
        
        
Answer:
how did what?
Step-by-step explanation: