Respuesta :

Answer:

Step-by-step explanation:

Wanda reaches hector at 4.5h. Wanda can not reach hector before the race ends, since at the speed he is going (16m / h) he would reach when both are at mile 72 and the race is 42 miles.

Wanda needs to increase her speed to 21m / h to catch Hector at the finish line.I attach the answers.