Let the age of Jay be x years, so age of Jay's father is 2x years .
After 20 years,
Jay's age will be 
And Jay's father age will be 
But at that time, jay's age will be

So we have

Cross multiplication

Therefore Jay's age is 20 years and Jay's Father's age is 40 years .
Step-by-step explanation:
-5>4 because it is based on formula
39.99 + tax of 9% (.09) = $40.58 if you paid $5.00 the item was 88% off
40.58 * .88 = 35.71 - 40.58 = $4.86
Answer:
-0.917144001
Step-by-step explanation: