Someone help pls :(( A woman drives a distance of 40km to work each day and her average speed for the journey is written as x km/h. If she increases her average speed by 5km/h, it takes 2 minutes less time than usual to make the journey. Calculate her normal speed in km/h.

You have to find the angle i don’t know if i i try

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.