Karl is 15 years older than james. 5 years ago, karl was 4 times james age. how old will james be in 4 years?

5 years ago, Karl was 20 and James was 5. 20-5=15 and 4*5=20. Now, Karl is 25 and James is 10. In 4 years, Karl will be 29 and James will be 14.

Dis the solution here

In all honesty, there really is no “work” per say to show. mainly it’s just using the process of elimination. the question is asking which domain(s) would be the most appropriate for the function c(n). n is the number of observed vehicles so right away, 1, 2, and 3 can be eliminated.why? 1, 2 start in the negatives and therefore it is impossible to observe negative cars. so, #4 would be the best answer to the given problem.