Answer:
On problem one the answer is 4 but I'm not sure about the second problem
Answer:
add 200 for each of the In
Step-by-step explanation:
10 plus 200 is 210
211 = 411
536 = 736
1406 = 1606
The cost of one ticket will be £8.20
<em><u>Explanation</u></em>
Suppose, the cost of one ticket is 
As the offer says "buy 3 tickets and get a ticket free" , it means <u>they actually need to pay for 3 tickets</u>.
So, the total cost of 3 tickets 
Each of four friends pay £6.15 , so the <u>total amount they pay</u> 
Thus, the equation will be .....

So, the cost of one ticket will be £8.20