40% of 200 is 80 so 120 were sold at the door
Answer:

Step-by-step explanation:
The word "difference" represents a subtraction. Then the algebraic expression will be of the form a-b.
Now, the difference is between the cube of a number and the square of the number, then let's call the number x. The square of the number is raise to two. Then the square of the number is
.
The cube of the number is raise to three. Then the cube of the number is
.
So, the difference between the cube of a number and the square of the number (we are talking about the same number in the square and the cube) is
.
Answer:
<h3>a.China - 52</h3>
<h3>b.Malaysia - 76</h3>
<h3>c.Singapore - 57</h3>
<h3>Will You Be My Friend?</h3>
<h3>Plz mark Me brainliest Dear☺☺</h3>
Answer:
223454353.000000000000000000
Step-by-step explanation:
A refrigeration system of 60 kW capacity at an evaporator temperature of – 40°C and a condenser temperature of 20°C is needed in a food storage locker. The refrigerant R134a is sub-cooled by 10°C before entering the expansion valve. The vapour is 0.98 dry as it leaves the evaporator coil. The compression in the compressor is of adiabatic type.