If six costs 2.50 what does one cost

Ben is three times as old as samantha, who is two years older than half of michel's age. if michel is 12. how old is ben?

What is the value of x? enter your answer in the box.

Answer asap. you begin with 1/2 scoop of ice cream. since you're hungry, you ask the vendor for 2/7 more scoops of ice cream. then, you eat 5/8 scoops. how many scoops of ice cream are left on your cone? i will mark brainliest for first correct answer.