PLEASE HELP!!!!!!!!!

A car manufacturer does performance tests on its cars. During one test, a car starts from rest, and accelerates at a constant rate for 20 seconds. Another car starts from rest three seconds later, and accelerates at a faster constant rate. The equation that models the distance (d) in metres the first car travel travels is: d=1.16t^2, where t is time, in seconds, after the car starts. The equation for the second car is: d= 1.74(t-3)^2

a. In the context, what is a suitable domain for the graph of this system?

b. At what time will both cars have driven the same distance?

c. How far will they have driven at this time?

Answer:15.66

Step-by-step explanation: