Taxi fare

Write a function that calculates the fare of a taxi ride. Its input is \(x\) (distance in km) and the fare is calculated as follows:

• \(x\) is rounded up to the nearest integer (you might want to use ceiling())
• the first kilometer is $5
• every additional kilometer is $2

For example, the fare for a ride of 5.2km is \[\$5 + 5\times \$2 = \$15.\]