7/8 of an hour is 52.5 minutes. 3/10 of 52.5 minutes is 15.75 minutes. They spent 15.75 minutes warming up and cooling down.
10 tickets for $1.00 is the better buy because because that would make each ticket 10cents which is cheaper
Given parameters:
Principal = £1300
Interest rate = 5%
Duration = 2yrs
Unknown:
Total amount of Dan's principal = ?
To solve this problem, we apply the equation below:
Total investment worth = Principal + interest
Interest = 
where P is the principal
R is the rate
T is the time
Now, input the parameters;
Total investment worth = £1300 + £ 
= £1300 + £130
= £1430
The amount after two years is £1430