Answer:
10 tiles
2 vowel (E, I)
Then P(pick vowel) = 2/10 =1/5 =20%
1/3+1/4=7/12 because changing the denominators to make them common gives you 4/12+3/12=7/12
The cost is £79.76. Since the car covers 560 miles and 34.5 miles is travelled by one gallon. So, dividing 560 by 34.5 we get 16.23. Since 1 gallon is 4.55 litres, 16.23 gallons is 73.8465. Now the cost of petrol is £1.08 per litre. So, multiplying 73.8465 by £1.08 we have £79.76