What’s the answer to the question plz

A

Step-by-step explanation:

The inequality 1.25x-6.50>50 says that 1.25 is charged to added per x number of things and that 6.50 is taken away. At the end of this calculation, it must be more than $50. This means B and D are not options because they are always adding not taking away any value. C is not an option because 1.25% converts to 0.0125. As a growth interest it would be 1.0125x not 1.25x. This means A must be the solution.

answer: 8 years

step-by-step explanation:

the explanation is that in 8 years the child will be 20 and in 8 years the father will be 40 and 20 is half of 40.