answer A:
Answer;-Cost Cost is a term describes what a manufacturer spends for goods or services.Explanation; 
-Cost of goods sold (COGS) is the direct costs attributable to the production of the goods sold in a company. This amount includes the cost of the materials used in creating the good along with the direct labor costs used to produce the good. Cost of goods sold is also referred to as "cost of sales."
-Gross Profit is your company's revenue minus the cost of the goods sold (COGS).
 
        
             
        
        
        
Answer:
the value of x=
2×-12= -24
the value of y is 3y plus 20 which equals to 23
 
 
        
             
        
        
        
Answer:
3:36PM
Step-by-step explanation:
Leon starts at 12PM with 12 gallons of gas, and after 2 hours he has used 5 gallons of gas. This means that every 2 hours he uses 5 gallons of gas.
Next we will find at what point Leon will stop to get gas. Since he will stop when the tank is at  capacity, we can use the equation:
 capacity, we can use the equation:

This shows  of his tank's capacity (
 of his tank's capacity ( ) is equal to
) is equal to  gallons. This means he will stop for gas when
 gallons. This means he will stop for gas when  gallons are remaining.
 gallons are remaining.
Now we need to find how many gallons of gas he uses, but as a unit rate. (This will allow us to find what time Leon will stop to get gas.) To find the unit rate, we will need to find how many gallons of gas he uses per hour.

This is a simple proportion, and now we know he uses  gallons of gas per hour.
 gallons of gas per hour. 
Now we can how many hours of gas Leon has left.
He has  gallons of gas left at 2PM, so we can divide to find how many hours left of gas he has.
 gallons of gas left at 2PM, so we can divide to find how many hours left of gas he has.

The  is because Leon doesn't stop when his tank is empty, he stops
 is because Leon doesn't stop when his tank is empty, he stops  gallons earlier. We are dividing by
 gallons earlier. We are dividing by  because that is how much gas he uses per hour, meaning the result of this division (
 because that is how much gas he uses per hour, meaning the result of this division ( ) is how many hours he has left.
) is how many hours he has left.
Now we can solve for what time Leon will stop to get gas.
12PM +  hours of driving + the remaining
 hours of driving + the remaining  hours = 3:36PM
 hours = 3:36PM
( hours is equal to 1 hour and 36 minutes)
 hours is equal to 1 hour and 36 minutes)
Therefore, Leon will stop for gas at 3:36PM