What is the input when the rule is 17​

How many kilometers are equal to 5 miles? use 1 mile ≈ 1.61 kilometers. !

Celeste wants to have her hair cut and permed and also go to lunch. she knows she will need $50. the perm cost twice as much as her haircut and she needs $5 for lunch. how much does the perm cost?

If a flying disk is 139 meters in the air and travels at an average of 13 m/s how long is it in the air