Answer:
The cheapest is the Kenyan tea which costs  £1.05  for each 100g.
Step-by-step explanation:
A) 
200 g of Kenyan tea costs £2.10
1. Calculate the rate of each gram, by dividing 2.10/200
0.0105 x 100 =    £1.05  for each 100g 
300 g of Columbian tea costs £3.45
1. Calculate the rate of each gram, by dividing 3.45/300
0.0115 x 100 =  £1.15 for each 100g 
1. Calculate the rate of each gram, by dividing 1.70/150 
150 g of Indian tea costs £1.70
0.01133333333 x 100 =  £1.133333333 for each 100g
B) The cheapest is the Kenyan tea which costs  £1.05  for each 100g.
 
        
             
        
        
        
Answer: -138
Step-by-step explanation:
pls help me with this on my account
gaston is making a tent for boy scout camp. he has been instructed to use canvas on all of the sides except the bottom, which will be made out of a different material. how much canvas will gaston need?
 
        
             
        
        
        
I think the answer is C or A
        
             
        
        
        
These 2 equations has no solution and the equations are independent of each other.
<u>Step-by-step explanation:</u>
-10x² -10y² = -300 ----a
5x² + 5y² = 150 ---- b
 While trying to solve this, 
We can multiply the eq. b by 2 so we will get eq. c and then add to eq. a we will get 0 as the solution.
10x² + 10y² = 300 ----c 
-10x² -10y² = -300 ---a
Everything cutoff, we will get 0, and there is no solution to these equations.