So, we first add the 20 and 72 together and you will get 92.
What I like to do next is usually 92/100x8.5. The tax would be then 7.82
92 + 7.82 = 99.82 < 100
The answer is yes.
 
        
             
        
        
        
Sqrt28 = 5.2915~ 
largest integer below = 5 
(round down)
        
                    
             
        
        
        
This problem can be completed in 2 ways. Both are acceptable.
Option 1:This is an isosceles trapezoid that can be divided into a rectangle and two congruent triangles.
The area of the rectangle is the base times the height.

The area of one of the triangles is half the base times the height.

The other triangle must have that area too.

The area is 56 square centimeters.
Option 2:We can use the area formula for the trapezoid.

Where 

 is the length of the shorter base
and 

 is the length of the longer base
and 

 is the height.
The length of the shorter base is 9.
The length of the longer base is 9+5+5, or 19.
The height is 4.


Same answer. The area is 56 square centimeters.
Both options are two acceptable ways the problem can be tackled.
 
        
        
        
18 cups, if you triple the amount without changing the percentage of strawberry, then the amount of strawberry yoghurt is also tripled
        
                    
             
        
        
        
Answer:
 (2•5y to the 7th power)
Step-by-step explanation:
Step 1:  (2y to the 4th power • 5) • y to the 3rd power
Step 2:  (2•5y to the 4th power) • y to the 3rd power
Step 3:  3.1    y to the 4th power multiplied by y to the 3rd power = y to the  (4 + 3) power = y to the 7th power
Final answer:  (2•5y to the 7th power)